Join devRant
Do all the things like
++ or -- rants, post your own rants, comment on others' rants and build your customized dev avatar
Sign Up
Pipeless API
From the creators of devRant, Pipeless lets you power real-time personalized recommendations and activity feeds using a simple API
Learn More
-
So, I needed a package installed on one of our Unix servers. The package manager--which is obsolete garbage--was failing with a message which can only be described as a variant of "Go fuck yourself". A quick Google search didn't help.
3 espressos and an eternity later, I have descended into a manic state. My hair has turned grey and I have started lactating. As a last-ditch effort, I try a new search query on Google, and the first link takes me to a forum with a thread discussing a similar issue. The last post in the thread has a solution which works for me. After fixing the issue, everything in the world feels right and I decide to thank the generous poster, who is like an angel to me at this point.
Guess what? The poster is none other than me. 8 months back, I had created a user account on the forum just to post the solution to a similar issue I had on another server.13 -
If Operating Systems Ran The Airlines
UNIX Airways
Everyone brings one piece of the plane along when they come to the airport. They all go out on the runway and put the plane together piece by piece, arguing non-stop about what kind of plane they are supposed to be building.
Air DOS
Everybody pushes the airplane until it glides, then they jump on and let the plane coast until it hits the ground again. Then they push again, jump on again, and so on ...
Mac Airlines
All the stewards, captains, baggage handlers, and ticket agents look and act exactly the same. Every time you ask questions about details, you are gently but firmly told that you don't need to know, don't want to know, and everything will be done for you without your ever having to know, so just shut up.
Windows Air
The terminal is pretty and colorful, with friendly stewards, easy baggage check and boarding, and a smooth take-off. After about 10 minutes in the air, the plane explodes with no warning whatsoever.
Windows NT Air
Just like Windows Air, but costs more, uses much bigger planes, and takes out all the other aircraft within a 40-mile radius when it explodes.
Linux Air
Disgruntled employees of all the other OS airlines decide to start their own airline. They build the planes, ticket counters, and pave the runways themselves. They charge a small fee to cover the cost of printing the ticket, but you can also download and print the ticket yourself. When you board the plane, you are given a seat, four bolts, a wrench and a copy of the Seat-HOWTO.html. Once settled, the fully adjustable seat is very comfortable, the plane leaves and arrives on time without a single problem, the in-flight meal is wonderful. You try to tell customers of the other airlines about the great trip, but all they can say is, "You had to do what with the seat?"10 -
Client: "Do you think we could finish specs in week 33, see a demo in week 35, and aim for the product to be finished in week 39?"
I jump on the conference room table, rip the shirt off my sweaty chest, and yell:
"WEEKS OF WHAT? 31 WEEKS SINCE YOU BECAME A CLIENT, 35 WEEKS FROM NOW, 39 WEEKS INTO THE PREGNANCY? BLOODY FUCKING HELL MAN, DO YOU HAVE TO TALK LIKE A RETARD?"
Client, unfazed: "Weeks since the start of the year, sir"
Me, swinging my pants above my head like a lasso:
"WHAT THE FUCK KIND OF SNOWFLAKE ARE YOU, YOU REALLY EXPECT ME TO COUNT THE WEEKS SINCE THE START OF THE YEAR? WHAT ABOUT JUST USING DAY OF THE MONTH YOU OBNOXIOUS DIMWIT?"
Client: "We always use weeks at our company to plan things"
Me, winding the legs of my pants around the neck of the client:
"I HATE IT WHEN PEOPLE USE WEEKNUMBERS, JAKE. I. FUCKING. HATE. IT."
Client, still pretending everything is fine: "If you want I could send you a screenshot of my outlook calendar?"
Me, sitting in underpants on the client's back, sweaty legs wrapped around his waist, trying to pull out his gel-infested manager-hair while strangling him with my pants:
"TIME OF DEATH, UNIX TIMESTAMP 1595240810, ISO 8601 DATE 2020-07-20T10:26:50+00:00. ANOTHER PROJECT SUCCESSFULLY WRAPPED UP"
(parts of this story may have been dramatized to reflect my underlying emotions)30 -
Sharing a short story.
Time: 1:30 am
Conversation between me and a night watchman in my society.
I was walking and this watchman suddenly stopped me and started asking questions.
Watchman: Isn't it late at 1:30am. When do u sleep?
Me: I sleep very late (replied in a very uninterested manner)
Watchman: Which year are you?
Me: Final year of Graduation
Watchman: Which branch?
Me: (a bit annoyed now) Software Engineering
Watchman: So you know programming?
Me: (little shocked that he knows what's programming) Learning
Watchman: So, do your university teaches C, Python and UNIX?
Me:(completely shocked by his knowledge) Yup. Except UNIX, others yes.
Watchman then asked some fees related questions and placements scope.
I was annoyed when he approached me for a little talk.. But had a wonderful experience talking to this person. It's great when you meet such unexpected person having such knowledge.
When I asked him how he knows all these, he said he talks like this to many students and learnt it.
His last line to me when I said that you know a lot, was:
Sir, you are the ocean, I am a needle in it.
Truly awesome moment... Never judge anyone by looks or his occupation... Knowledge is something that anyone anywhere can gain...
Respect to that watchman...5 -
On Thursday, May 20, 2088 9:55:59 PM, my life will be complete: Unix Epoch time will equal 0xdeadbeef.10
-
curl cheat.sh — get an instant answer to any question on (almost) any programming language from the command line
tldr
do curl cht.sh/go/execute+external+program to see how to execute external program in go
And this question: why I actually should I start the browser, and the browser has to downloads tons of JS, CSS and HTML, render them thereafter, only to show me some small output,
some small text, number or even some plot. Why can't I do a trivial query from the command line
and instantly get what I want?
I decided to create some service that will work as I think such a service should work.
And that is how wttr.in was created.
Nowadays you probably know, how to check the weather from the command line, but if not:
curl wttr.in
or
curl wttr.in/Paris
(curl wetter in Paris if you want to know the weather in Paris)
After that several other services were created (the point was to check how good the console
can solve the task, so I tried to create services providing information
of various nature: text, numbers, plots, pseudo graphic etc.):
curl rate.sx/btc # to check exchange rate of any (crypto)currency
curl qrenco.de/google.com # to QRenco.de any text
And now last but not least, the gem in this collection: cheat.sh.
The original idea behind the service was just to deliver a various UNIX/Linux command line cheat sheets via curl. There are several beautiful community driven cheat sheet repositories such as tldr, but the problem is that to use them you have to install them first, and it is quite often that you have no time for it, you just want to quickly check some cheat sheet.
With cheat.sh you don't need to install anything, just do:
curl cheat.sh/tar (or whatever)
you will get a cheat sheet for this command (if such cheat sheet exists inf one of the most popular community-driven cheat sheet repositories; but it surely does).
But then I thought: why actually show only existing cheat sheets? Why not generate cheat sheets or better to say on the fly? And that is how the next major update of cheat.sh was created.
Now you can simply do:
curl cht.sh/python/copy+files
curl cht.sh/go/execute+external+program
curl cht.sh/js/async+file+read
or even
curl cht.sh/python/копировать+файл
curl cht.sh/ruby/Datei+löschen
curl cht.sh/lua/复制文件
and get your question answered
(cht.sh is an alias for cheat.sh).
And it does not matter what language have you used to ask the question. To be short, all pairs (human language => programming language) are supported.
One very important major advantage of console oriented interfaces is that they are easily
programmable and can be easily integrated with various systems.
For example, Vim and Emacs plugins were created by means of that you can
query the service directly from the editor so that you can just write your
questions in the buffer and convert them in code with a keystroke.
The service is of course far from the perfection,
there are plenty of things to be fixed and to be implemented,
but now you can see its contours and see the contours of this approach,
console oriented services.
The service (as well as the other mentioned above services) is opensource, its code is available here:
https://github.com/chubin/cheat.sh
What do you think about this service?
What do you think about this approach?
Have you already heard about these services before?
Have you used them?
If yes, what do you like about them and what are you missing?
26 -
fork() can fail: this is important
Ah, fork(). The way processes make more processes. Well, one of them, anyway. It seems I have another story to tell about it.
It can fail. Got that? Are you taking this seriously? You should. fork can fail. Just like malloc, it can fail. Neither of them fail often, but when they do, you can't just ignore it. You have to do something intelligent about it.
People seem to know that fork will return 0 if you're the child and some positive number if you're the parent -- that number is the child's pid. They sock this number away and then use it later.
Guess what happens when you don't test for failure? Yep, that's right, you probably treat "-1" (fork's error result) as a pid.
That's the beginning of the pain. The true pain comes later when it's time to send a signal. Maybe you want to shut down a child process.
Do you kill(pid, signal)? Maybe you do kill(pid, 9).
Do you know what happens when pid is -1? You really should. It's Important. Yes, with a capital I.
...
...
...
Here, I'll paste from the kill(2) man page on my Linux box.
If pid equals -1, then sig is sent to every process for which the calling process has permission to send signals, except for process 1 (init), ...
See that? Killing "pid -1" is equivalent to massacring every other process you are permitted to signal. If you're root, that's probably everything. You live and init lives, but that's it. Everything else is gone gone gone.
Do you have code which manages processes? Have you ever found a machine totally dead except for the text console getty/login (which are respawned by init, naturally) and the process manager? Did you blame the oomkiller in the kernel?
It might not be the guilty party here. Go see if you killed -1.
Unix: just enough potholes and bear traps to keep an entire valley going.
Source: https://rachelbythebay.com/w/2014/...12 -
A group of Security researchers has officially fucked hardware-level Intel botnet officially branded as "Intel Management Engine" they did so by gathering it all the autism they were able to get from StackOverflow mods... though they officially call it a Buffer Overflow.
On Wednesday, in a presentation at Black Hat Europe, Positive Technologies security researchers Mark Ermolov and Maxim Goryachy plan to explain the firmware flaws they found in Intel Management Engine 11, along with a warning that vendor patches for the vulnerability may not be enough.
Two weeks ago, the pair received thanks from Intel for working with the company to disclose the bugs responsibility. At the time, Chipzilla published 10 vulnerability notices affecting its Management Engine (ME), Server Platform Services (SPS), and Trusted Execution Engine (TXE).
The Intel Management Engine, which resides in the Platform Controller Hub, is a coprocessor that powers the company's vPro administrative features across a variety of chip families. It has its own OS, MINIX 3, a Unix-like operating system that runs at a level below the kernel of the device's main operating system.
It's a computer designed to monitor your computer. In that position, it has access to most of the processes and data on the main CPU. For admins, it can be useful for managing fleets of PCs; it's equally appealing to hackers for what Positive Technologies has dubbed "God mode."
The flaws cited by Intel could let an attacker run arbitrary code on affected hardware that wouldn't be visible to the user or the main operating system. Fears of such an attack led Chipzilla to implement an off switch, to comply with the NSA-developed IT security program called HAP.
But having identified this switch earlier this year, Ermolov and Goryachy contend it fails to protect against the bugs identified in three of the ten disclosures: CVE-2017-5705, CVE-2017-5706, and CVE-2017-5707.
The duo say they found a locally exploitable stack buffer overflow that allows the execution of unsigned code on any device with Intel ME 11, even if the device is turned off or protected by security software.
For more of the complete story go here:
https://blackhat.com/eu-17/...
https://theregister.co.uk/2017/12/...
I post mostly daily news, commentaries and such on my site for anyone that wish to drop by there
19 -
They: What do you do for a living?
Me: DevOps, FreeBSD Administration, Ruby, ...
They: hmm?
Me: administrator for UNIX systems
They: whut?
Me: I do stuff with computers
They: I really like Apple
Me: *sigh*
.... and every time, too...10 -
My first semester in college I had a six-week Saturday course on how to use UNIX that ran from 9-12. The professor hada habit of going at least an hour over time each week, so by the fourth week we're getting a bit tired of it.
That particular session, right at noon, he decided to teach us how to message other people on the network. Finally, we made our way over to the wall command a half hour later. Bored to tears, I type the following into my console:
wall "Are we done yet?"
Suddenly, the projector updates:
Kaji says:
"Are we done yet?"
Not realizing my name was going to be attached to it, I sank back into my seat a bit. The professor glared at me for about 5 seconds, then promptly wrapped up. Future class sessions ended on time. -
Got a call from Google!
Asked for two months to study: Discrete mathematics, Calculus, introductions to algorithms, design patterns, CTCI and linux/unix OS workings in general.
I know I'll be banging my head against the wall and I don't have my expectations too high. But regardless I feel like this is a good excuse to speed up my studies and push myself in the direction I want to go already. It'll be a win-win even if I don't land the position because I'll definitely gain a ton in the process of preparing.
I will be expose to all of this material (except for calculus because I've been learning it for a couple of months) for the first time so I know it'll be a challenge and I am looking forward to it.
If any of you have any tips on good study habits that'll be much appreciated; I currently like to read most of my material and supplement with videos/tutorials... Khan is great but they lack material on discrete mathematics unfortuantely. Thanks in advance!
Wish me luck (:8 -
When I was in college, our email was on a Unix server. We would login via serial connection or telnet over the network, and get a korn shell. The server was poorly secured. Everyone's login device was world writable. So people would just see who was online, see the username of someone they wanted to mess with, take note of the pts(network) or tty(serial) device their connection used, and cat ASCII penises to it.
cat animated_dong.txt > /dev/pts/4
It was a simpler time.2 -
When I was 23 or so, I worked nights in a tier-1 control room. Each workstation had a win98 desktop, and two HPUX workstations running CDE. I read all of the lord of the rings in text files on the HPUX machines, and since it was in an xterm window, my supervisor thought I was just tailing logs.7
-
That moment that you come across a domain name which you thought would have definitely been taken already.
Came across strtoti.me. (php function for converting date/time strings into unix epoch's). Quickly wrote an api for it and put it online because fuck it, why not!
Feel free to use it as much as you want, I can't guarantee its availability unless it would become really popular but I can't imagine that.
URL: https://strtoti.me
API example: https://strtoti.me//... 20 20:15
API example (url encoded): https://strtoti.me//...
API documentation (not that good yet, might improve it..): https://strtoti.me
Well, let's see how this goes. Feedback appreciated but I currently have a shitload of projects to it doesn't have the highest priority right now!12 -
1. Scripting out a team. I've built a collection of bash scripts to do what one of our teams does. Except the script does it in 30min and always does it well where that team used to take 4 to 10 hours and almost always missed something in the way.
2. Automate 70-80% of our BAU tasks with a single >4k loc bash script. Integrations with servicenow, lots of internal portals, predefined huge sets of commands to run on separate servers or lists of servers, do all sorts of diagnostics, schedule hw maintenance for DC folks, chase for approvals, track CHNG/CTSK tickets in a graphical chart so we would not miss any of them and lots lots more.
Finally we were able to afford time to make some coffee/tea.
These are the bau optimizations I'm proud of the most. And they have made significant impact on how our teams operate.
Whoever recognizes both company values in the tags and know what is that company - are they still using ´S´ in unix team? :)1 -
Had a great time yesterday explaining a C++ dev on a UNIX box that yes, he actually has to shut down his machine before adding this new extra 8gb memory...4
-
I love how the Keybase Linux client installs itself straight into /keybase. Unix directory structure guidelines? Oh no, those don't apply to us. And after uninstalling the application they don't even remove the directory. Leaving dirt and not even having the courtesy to clean it up. Their engineers sure are one of a kind.
Also, remember that EFAIL case? I received an email from them at the time, stating some stuff that was about as consistent as their respect for Unix directory structure guidelines. Overtyping straight from said email here:
[…] and our filesystem all do not use PGP.
> whatever that means.
The only time you'll ever use PGP encryption in Keybase is when you're sitting there thinking "Oh, I really want to use legacy PGP encryption."
> Legacy encryption.. yeah right. Just as legacy as Vim is, isn't it?
You have PGP as part of your cryptographic identity.
> OH REALLY?! NO SHIT!!! I ACTIVELY USED 3 OS'S AND FAILED ON 2 BECAUSE OF YOUR SHITTY CLIENT, JUST TO UPLOAD MY FUCKING PUBLIC KEY!!!
You'll want to remove your PGP key from your Keybase identity.
> Hmm, yeah you might want to do so. Not because EFAIL or anything, just because Keybase clearly is a total failure on all levels.
Written quickly,
the Keybase team
> Well that's fucking clear. Could've taken some time to think before hitting "Send" though.
Don't get me wrong, I love the initiatives like this with all my heart, and greatly encourage secure messaging that leverages PGP. But when the implementation sucks this much, I start to ask myself questions about whether I should really trust this thing with my private conversations. Luckily I refrained from uploading my private key to their servers, otherwise I would've been really fucked. -
Just spent 15 minutes trying to explain Unix time and Y2K to a liberal arts major who wanted to know why 2038 is such a huge deal. It was technical, frustrating, and challenging. Kinda like debugging3
-
Today I learned that in Unix/Linux or most command lines, when user is asked to choose an option as [Y/n], the uppercase one signifies the default.
I thought they made it a little harder as a security feature to prevent accidental keypress, and I’m shift+Y ing this for the last eight freaking years!!!!! Every time!17 -
I previously worked as a Linux/unix sysadmin. There was one app team owning like 4 servers accessible in a very speciffic way.
* logon to main jumpbox
* ssh to elevated-privileges jumpbox
* logon to regional jumpbox using custom-made ssh alternative [call it fkup]
* try to fkup to the app server to confirm that fkup daemon is dead
* logon to server's mgmt node [aix frame]
* ssh to server directly to find confirm sshd is dead too
* access server's console
* place root pswd request in passwords vault, chase 2 mangers via phone for approvals [to login to the vault, find my request and aprove it]
* use root pw to login to server's console, bounce sshd and fkupd
* logout from the console
* fkup into the server to get shell.
That's not the worst part... Aix'es are stable enough to run for years w/o needing any maintenance, do all this complexity could be bearable.
However, the app team used to log a change request asking to copy a new pdf file into that server every week and drop it to app directory, chown it to app user. Why can't they do that themselves you ask? Bcuz they 'only need this pdf to get there, that's all, and we're not wasting our time to raise access requests and chase for approvals just for a pdf...'
oh, and all these steps must be repeated each time a sysadmin tties to implement the change request as all the movements and decisions must be logged and justified.
Each server access takes roughly half an hour. 4 servers -> 2hrs.
So yeah.. Surely getting your accesses sorted out once is so much more time consuming and less efficient than logging a change request for sysadmins every week and wasting 2 frickin hours of my time to just copy a simple pdf for you.. Not to mention that threr's only a small team of sysadmins maintaining tens of thousands of servers and every minute we have we spend working. Lunch time takes 10-15 minutes or so.. Almost no time for coffee or restroom. And these guys are saying sparing a few hours to get their own accesses is 'a waste of their time'...
That was the time I discovered skrillex.3 -
I've never used Windows in my day-to-day life. No kidding.
When I got my father's first computer, I used an old distribution called BBC Linux. I didn't have any computer knowledge, it was my first contact with a computer, so I went to a friend's house and asked for a CD to install on my computer. I don't know if this friend ended up making a "gotcha" and thought I'd give up, but I just read the manuals and fell in love. That was year 2000.
Then I used Conectiva Linux, then I went to Red Hat 9, then Slackware, then in 2007 I started using Solaris. And I stayed on Solaris (Solaris 10, Solaris Nevada and OpenSolaris) until 2011.
In 2011 I bought a Mac. I stayed at Apple until 2020, when I couldn't stand Apple forcing me to buy new computers (I still don't understand how a 2011 iMac, i5 (4 Hyper Thread cores) with 16GB of RAM, 1TB SSD only runs up to High Sierra).
Then I bought a Dell. It came with Windows 10, the first thing I did was install WSL2. I could not stand it, the system is bad, sorry. I installed OpenSuse and have been using it for two years.
It's just that every day someone tells me "how can you use this"? "There is no alternative to Windows, do you want to be different?"
I know that my story was the reverse of the "mainstream", so I'm going to talk about my vision of Windows, that in my brain it is actually the "alternative".
- Having a file explorer without "tabs" in 2022 is unthinkable for me.
- I love terminal. And the Windows terminal is very limited. "ps ... | awk ... | xargs ..." is a must for me. "find ./ -name '...' -exec ..."... these things on Windows are totally "different" and have the "powershell way" while all other operating systems keep the same form. And cygwin is not an option. As Wine for serious work is also not.
- Dragging a file into the terminal, and having it write its path, is so natural, that when Windows didn't do it, I was dismayed.
- I've always used StarOffice, OpenOffice and now LibreOffice. All the people in my story received my documents and reports as a PDF and no one complained. Until a coworker saw me editing in LibreOffice and said "oh I want it in word format". As long as he didn't know, everything was fine, right?
- Windows is paid. And is there advertising? I don't understand. And I refuse. If you want to display advertising, then excuse me. I have no problem paying, I'm not an opensource shiite. It's just that paying and not working bothers me much more than an opensource that I can fix or expect a fix knowing the good will of the people involved.
- Hyper-V is a joke. QEMU/KVM is better, and Bhyve on FreeBSD which is a very young project, is already a million times better than Hyper-V.
- Developing in C/C++ for Windows is only possible in two ways: Either you've always lived in Windows and your brain is conditioned, or you compile with MSYS2 (CLang or GCC).
- There is no significant evolution of the windows desktop since 95.
- Multiple workspace support with multiple monitors, not ready. It's another joke.
- REGEDIT does not need any comment.
- The system loses performance over time. I still don't know how Windows achieves this.
- I've seen people complain about desktop fragmentation on Unix and Linux. Many DEs end up leaving applications with different themes (like running a Qt application in Gnome and GTK in KDE), but to be quite honest, the lack of Windows standard bothered me much more. Even Microsoft's own software is completely different: Control Panel, Calculator, Paint and Office, To-Do, and Settings, have horrible style differences and look-and-feel fragmentation.
- Dark mode has not been implemented. It's another joke. Many applications are white while everything else is dark. Sorry, even on Linux which is a mess, this has been resolved. And well resolved.
- NTFS? Serious?
- C:, D:.. It doesn't convince me since DOS.
- Bloatware.
- News "biased" in the search bar is a lack of respect for those who use the computer to work.
And that. For me, Windows is the alternative operating system. I can't take Windows seriously, for me it's an experimental one like Haiku or ReactOS. It's good to play.
About market share, it doesn't convince me to use it. But convinces me to sell. I've always developed applications to run on Windows. And when I need it, I turn on a VM to compile the project. But in everyday life? Impractical.15 -
I have been using Linux based system from so long but last week I was building outlook add-on using Visual studio. It was a nightmare to work on visual studio(Or any IDE in Windows) after working for a long time on Linux/UNIX based systems. So much of mouse clicks, worst console experience, etc. Windows is definitely not for developers.11
-
I was reminded of people's posts about preferred text editors in another post, so I thought I'd do the same, but also add some super old technology that I used along the way.
The first text editor I consistently used was pico. I used it to write my first webpage at school.edu/~username. It was a natural choice, because the it was the default text editor in pine, which is what we would all use for our email after opening a serial connection to the college's Digital Unix server. Or if we were the lucky ones who had a computer in a wired dorm, telnet. My dorm was not wired until my sophomore year.
I got my first job in tech in 2001, working as a night shift tier-one support technician. By this time, most people were using web based email, or POP3, but I wanted to keep using pine (or elm, or mutt) because I was totally in love with the command line by this time, and had been playing with Linux for two or three years by now. I arranged a handshake deal with a guy in my home town who had a couple well-connected NetBSD servers, to let me have an account on one for email and web hosting (a relatively new idea at the time).
I recall telnetting into my shared hosting account from the HP-UX workstations we had in the control room. I would look at webpages on HTML conventions and standards, and I kept seeing references to this thing called vi. I looked into it more deeply, and found that it was a text editor, and was the reason I always had to CTRL-Z out of elm. I was already finding pico to be lacking, so I found a modern implementation of vi called vim that was already installed on the aforementioned NetBSD server, and read through vimtutor on it. I was hooked instantly. The modality massively appealed to me, and I found editing files to be an absolute delight, compared to pico, and its nascent open source offspring/successor, nano.
My position on that hasn't changed in the years that have passed since then.
What's your text editor origin story?1 -
Last Monday I bought an iPhone as a little music player, and just to see how iOS works or doesn't work.. which arguments against Apple are valid, which aren't etc. And at a price point of €60 for a secondhand SE I figured, why not. And needless to say I've jailbroken it shortly after.
Initially setting up the iPhone when coming from fairly unrestricted Android ended up being quite a chore. I just wanted to use this thing as a music player, so how would you do it..?
Well you first have to set up the phone, iCloud account and whatnot, yada yada... Asks for an email address and flat out rejects your email address if it's got "apple" in it, catch-all email servers be damned I guess. So I chose ishit at my domain instead, much better. Address information for billing.. just bullshit that, give it some nulls. Phone number.. well I guess I could just give it a secondary SIM card's number.
So now the phone has been set up, more or less. To get music on it was quite a maze solving experience in its own right. There's some stuff about it on the Debian and Arch Wikis but it's fairly outdated. From the iPhone itself you can install VLC and use its app directory, which I'll get back to later. Then from e.g. Safari, download any music file.. which it downloads to iCloud.. Think Different I guess. Go to your iCloud and pull it into the iPhone for real this time. Now you can share the file to your VLC app, at which point it initializes a database for that particular app.
The databases / app storage can be considered equivalent to the /data directories for applications in Android, minus /sdcard. There is little to no shared storage between apps, most stuff works through sharing from one app to another.
Now you can connect the iPhone to your computer and see a mount point for your pictures, and one for your documents. In that documents mount point, there are directories for each app, which you can just drag files into. For some reason the AFC protocol just hangs up when you try to delete files from your computer however... Think Different?
Anyway, the music has been put on it. Such features, what a nugget! It's less bad than I thought, but still pretty fucked up.
At that point I was fairly dejected and that didn't get better with an update from iOS 14.1 to iOS 14.3. Turns out that Apple in its nannying galore now turns down the volume to 50% every half an hour or so, "for hearing safety" and "EU regulations" that don't exist. Saying that I was fuming and wanting to smack this piece of shit into the wall would be an understatement. And even among the iSheep, I found very few people that thought this is fine. Though despite all that, there were still some. I have no idea what it would take to make those people finally reconsider.. maybe Tim Cook himself shoving an iPhone up their ass, or maybe they'd be honored that Tim Cook noticed them even then... But I digress.
And then, then it really started to take off because I finally ended up jailbreaking the thing. Many people think that it's only third-party apps, but that is far from true. It is equivalent to rooting, and you do get access to a Unix root account by doing it. The way you do it is usually a bootkit, which in a desktop's ring model would be a negative ring. The access level is extremely high.
So you can root it, great. What use is that in a locked down system where there's nothing available..? Aha, that's where the next thing comes in, 2 actually. Cydia has an OpenSSH server in it, and it just binds to port 22 and supports all of OpenSSH's known goodness. All of it, I'm using ed25519 keys and a CA to log into my phone! Fuck yea boi, what a nugget! This is better than Android even! And it doesn't end there.. there's a second thing it has up its sleeve. This thing has an apt package manager in it, which is easily equivalent to what Termux offers, at the system level! You can install not just common CLI applications, but even graphical apps from Cydia over the network!
Without a jailbreak, I would say that iOS is pretty fucking terrible and if you care about modding, you shouldn't use it. But jailbroken, fufu.. this thing trades many blows with Android in the modding scene. I've said it before, but what a nugget!8 -
>Installed a new graphics card (thanks santa <3)
>Boots into Ubuntu
>Try to SSH. No route to device.
>Log in locally. "Failed to start raise network interfaces"
>ok.
>find out that installing graphics card renamed enp2s0 to enp3s0.
>ok.6 -
I love Unix systems because everything goes smoothly most of the time but today... Fuck me... I just wanted to see how many lines my script was with "wc - l" but I couldn't remember "m" or "w". 180 degrees separated despair and monotony, although I didn't know it yet. I did "mc - l" first and midnight logged empty ftp buffer to my file. Goodbye Thursday and Fridays work :) I should commit more often.4
-
Man, people have the weirdest fetishes for using the most unreadable acrobatic shell garbage you have ever seen.
Some StackOverflow answers are hilarious, like the question could be something like "how do I capture regex groups and put them in a variable array?".
The answer would be some multiline command using every goddamn character possible, no indentation, no spaces to make sense of the pieces.
Regex in unix is an unholy mess. You have sed (with its modes), awk, grep (and grep -P), egrep.
I'll take js regex anytime of the day.
And everytime you need to do one simple single goddamn thing, each time it's a different broken ass syntax.
The resulting command that you end up picking is something that you'll probably forget in the next hour.
I like a good challenge, but readability is important too.
Or maybe I have very rudimentary shell skills.5 -
Why the fuck don't you provision and configure the cloud virtual machine yourself, "web lead" guy who uses fucking WINDOWS to develop software? Why don't you install Webmin and PHPMyAdmin in the VM yourself if you like GUIs so much? Why do I have to configure Apache and MySQL and fix all sorts of little issues for your project just so you can use some shitty CMS? I'm not your fucking IT support guy. Go learn how to use Unix, take responsibility for your shit, and let me spend my time actually developing software.8
-
Got my unix stickers today 🤓
Thanks to @gitlog for telling me about this and also to the person who posted it here for the first time
7 -
I normally just have nightmares about the projects I'm working on, especially when I struggle with a bug for days. Those are usually about just me stressing out about it. However, I have a lot of dreams about computers/technology, not necessarily coding-related:
- datacenters were just potato fields. If you go work the field, you'd go data mining
- in Biology, when being taught how having children works, you only tell that "parenting is only chmod-ing the rights of your children until they become the owners themselves"
- IP addresses with emojis instead of numbers were a standard now and they actually managed to replace IPv4, because everyone was so into emojis. They named it IPvE
- I witnessed a new Big Bang when the 32-bit Unix time overflown in 2038, and we were all quantum bits3 -
I've been using the Square REST API and I spent one hour thinking there was something wrong in my code until I f** found that THEY were not following OAuth 2 guidelines, which made their workflow incompatible with the OAuth lib I was using, so I had to mark an exception for Square's OAuth from the rest of my OAuths. Specifically, RFC 6749 Section 4.2.2 and 5.1.
However, after reading OAuth 2 guidelines, I became angry at THEM instead. The parameter `expires_in` should be the "lifetime in seconds" after the response. This will always be innevitably inaccurate, since we are not taking into account the latency of the response. This is, however, not a huge problem, since the shortest token lifetimes are of an hour (like f** Microsoft Active Directory, who my cron jobs have to check every ten minutes for new access tokens). Many workflows (like Microsoft, Square, and Python's oauthlib) have opted to add the `expires_at` parameter to be more precise, which marks the time in UTC. However, there's no convention about this. oauthlib and Microsoft send the time in Unix seconds, but Square does this in ISO 8601. At this point, ISO 8601 is less ambigious. Sending a raw integer seems ambiguous. For example, JavaScript interprets integer time as Unix _milliseconds_, but Python's time library interprets it as _seconds_. It's just a matter of convention, a convention that is not there yet.
Hope this all gets solved in OAuth 2.1 pleeeaasseee
1 -
Hi, my name is bohr and I'm a recovering distro hopper.
It all started with Ubuntu, out of my frustrations with the unintuitive nature of DOS I gravitated to a Unix environment which Ubuntu naturally solved. But I quickly became annoyed with the laggy nature of it's daily usage. So I switched to Linux mint. Loving the HTML/css/js configuration aspect of cinnamon I thought it was the answer to all my problems. But I became annoyed with apt and it's lack of a few programs I wanted. This got me to look into an arch based distro, because pacman seemed like the answer to my problems. Unfortunately there are way too many arch distros to use. I experimented with antegros' many DE options: gnome, kde, i3, deepin, openbox... Always finding something wrong. I tried manjaro and it's many flavors, still being annoyed with minute aspects of the os. Out of frustration, with the deep configuration settings I was getting into and the need to actually focus on the work being done on the computer I crawled back to Linux mint. But now my friends, I have decided that maybe it's time to just use a more established distro? Maybe gnome isn't actually that bad? Maybe I need to give it another try? And that is why, I promise, this is the last hop for me. Arch Linux, Gnome here I come and I'm ready to commit this time!...
But have you guys seen POP!_OS? Woah, I bet it would solve all of my problems....6 -
Since my first post was a success, here's another shameless hack-- in this case, ripping a "closed" database I don't usually have access to and making a copy in MySQL for productivity purposes. That was at a former job as an IT guy at a hardware store, think Lowes/Rona.
We had an old SCO Unix server hosting Informix SQL (curious, anyone here touched iSQL?), which has terminal only forms for the users to handle data, and has keybindings that are strangely vi based (ESC does commit changes. Mindfsck for the users!). To add new price changes to our products, this results to a lengthy procedure inside a terminal form (with ascii borders!) with a few required fields, which makes this rather long. Sadly, only I and a colleague had access to price changes.
Introducing a manager who asks a price change for a brand- not a single product, but the whole product line of a brand we sell. Oh and, those price changes ends later after the weekend (twice the work, back at regular price!)
The usual process is that they send me a price change request Excel document with all the item codes along with the new prices. However, being non technical, those managers write EVERYTHING at hand, cell by cell (code, product name, cost, new price, etc), sometimes just copy pasted from a terminal window
So when the manager asked me to change all those prices, I thought "That's the last time I manually enter all of this sh!t- and so does he". Since I already have a MySQL copy of the items & actual (live) price tables, I wrote a PHP backend to provide a basic API to be consumed to a now VBA enhanced Excel sheet.
This VBA Excel sheet had additional options like calculating a new price based on user provided choices ("Lower price by x $ or x %, but stay above cost by x $ or x %"), so the user could simply write back to back every item codes and the VBA Excel sheet will fetch & display automatically all relevant infos, and calculate a new price if it's a 20% price cut for example.
So when the managers started using that VBA sheet, I had also hidden a button which simply generate all SQL inserts for the prices written in the form, including a "back to regular price" if the user specified an end date, etc.
No more manual form entry for me, no more keyboard pecking for the managers with new prices calculated for them. It was a win/win :)1 -
!coding
I used to be a sysadmin, which meant I was in charge of quarterly server patching. My team managed about 2500 servers, running various flavors of linux and legacy unix. The vast majority(95% or more) ran Linux(SLES). Our maintenance window was always in the overnight-- 10pm to 6am --so the stroke of 10pm would be a massive cascade of patching commands sent to hundreds of servers.
Before I was brought into the process, it made use of the automation product we were tasked by mgmt to use: Bigfix. It's a real piece of shit. Though we had 2500 or so servers, this environment was dominated by windows. All our vcenter servers ran it, and more importantly, our bigfix nodes were all windows machines. That meant that while we're trying to patch, the bigfix servers would get patched by the windows team. This would cause lots of failed and timed out patching, because the windows admins never quite understood that taking down the automation infrastructure would cause problems.
As such, I got tired of depending on a bunch of button-pushing checkbox-clickers who didn't know shit about shit, so I started writing an ssh-wrapped patching system. By the time I left for my current job, patching had been reduced to a single command to initiate each group's patching and reboots, and an easy check to see when servers come back up. So usually, the way it worked out was that I would send patching orders to 750 machines or so, and within about 5 minutes, they would all be done patching, and within another 20 minutes all the ones that required rebooting but about 5 would be done rebooting.
The "all-nighter" which happened every time was waiting for oracle servers to run timed fscks against a dozen or so large filesystems per server, because they were all on ext3/4, which eats complete shit. Then, several hours later, as they finished, I would have to call the DBAs to tell them to validate their shitty servers.3 -
MTP is complete garbage. I want mass storage back.
The media transfer protocol (MTP) occasionally discovers new creative ways of failure. Frequently, directory listings take minutes to load or fail to load at all, and it freezes up infinitely (until disconnected) when renaming an item, and I can not even do two things simultaneously.
While files are being moved, I can not browse pictures or watch videos from the smartphone.
Sometimes, files are listed with the date 1970-01-01 (Unix epoch) instead of their correct date. Sometimes, files do not appear at all, which makes it unsafe to move directories from the device.
MTP lacks random access. If I want to play a two-gigabyte 4K 2160p video and seek in the video, guess what: I need to copy it to my computer's local mass storage first because MTP lacks random access.
When transferring high numbers of files, MTP has to slooooowly enumerate (or "prepare" or "calculate the time of") them all, which might even take longer than mass storage would need for the entire process. This means MTP might start copying or moving the actual files when mass storage is already finished.
Today, the "preparing to move" process was especially slow: five minutes for around 150 files! How am I supposed to find out what caused this random malfunction?
MTP sometimes drives me insane. I want mass storage back, at least for the MicroSD memory card, which uses a widely supported file system.
Imagine a 2010 $100 Android phone is better at file transfer than a 2022 $1000 Android phone (or iPhone, for that matter).
3 -
Recently got around to dual booting my home machine with Ubuntu.
Now every time I log in, in my head i hear the kid from Jurassic Park exclaim "this is a unix system!"1 -
hey guys yesterday I got roasted cuz I was using a pc instead of Mac for development work and this was my reply. For me I don't gonna spend 2000+ $ only for 1 sec faster app loading and only for writing codes if someone willing to spend lot of money then they have completely command on there system Mac is very overpriced and overprotective it doest allow dual boot tell u what Mac sucks in 4k video editing,games,it don't even support maya or 3ds max rendering on Mac is gonna hit you hard , and there is same for linux but because it's free I don't much care about it but it is extremely crash and error prone I've installed Ubuntu nearly 20+ computer and after few days some kind of internal error occurred if u cancelled any ongoing installation it's going to hijack your system not let order program to install unless you manually clean that shit out ,yea Unix systems have bit faster app opening time and I appreciate that .
For nerds like me it's not only about coding stuff I like to do crazy stuffs17 -
I too got my $1 unix sticker pack (thank you very much whoever posted this by the way) and thought posting a picture of them would be redundant
First thing when I brought them to work to show them or to my colleagues I stepped out of my car and they all fell to the soaking wet ground (it was pouring down at the time)
Luckily they're of very high quality and still intact 😊11 -
Without Unix, there would have been no Minix (Tanenbaum et al.) orGNU (Richard Stallman et al.).Without Minix, there would be no inspiration to write Linux. Remember that Linus started his “project” because he didn’t like many of the design decisions Tanenbaum has taken in Minix, including the microkernel. In fact, Linus has tried to submit some changes to the professor and the latter rejected them. So the young chap decided to write his own kernel using his design.Without GNU, there would be no open source tools that Linus himself used to write, compile, test and distribute his project, to become a few years later a global phenomenon. Also, the fact that GNU was already an established Unix clone (minus an operating kernel) at that time helped Linus to focus on the missing part, the kernel. Otherwise, he would not have known where to start.And finally, Unix was the template all of the above (and more) were trying to imitate. Without it, there would have been nothing to clone from.1
-
Last weak I tried to use Linux Arch on my VM. The only Linux distribution I'm used to is Ubuntu and the fist time I launched Arch I completely forgot that it was " do it yourself ". And that the ISO isn't actually a fancy installer like the Ubuntu one.
So I started following a guide and found out that the arch wiki is actually the way to go.
I searched for 1 hour how to change the keyboard to swiss-french which was actually pretty simple.
After that exhausting research that made me realise how ignorant I am with UNIX universe, I finally tried to install the thing.
When I was done installing, it didn't want to boot after I restarted. I got stuck at the 'Booting...' screen. After a few tries I lost all my energy and motivation.
Tl;dr: Tried Arch Linux, realised I had no idea, gave up after a few tries4 -
semi dev related(later half)
A common and random thought I have:
A lot of units that humans use are either needlessly arbitrary or based on something weird. Like Fahrenheit. That shit is weird! 0°F is the freezing point of a water and salt solution. What a weird fucking thing to use!
But also, I like Fahrenheit more. Probably because it's what I was raised with and switching is tedious (though I'm trying. I'd like to use metric more), but also because one degree F is a smaller, more precise change. You can describe more accuracy without decimals.
On the other hand I prefer metric for length. Centimeters, and centimeters are way more precise and way less confusing than inches and .... 1/8th inches? Who the fuck decided on 1/8ths?!
Which brings me to my common thought:
If you look at a Unix timestamp, you can approximate somewhat when it happened. Knowing the current timestamp and a few reference points you can see RELATIVELY what a epoch stamp translates to. A few days ago, an hr ago, 2014ish.
This leads me to think that if we actually taught from a young age to think in epoch as a unit (not as a replacement to normal date formats but as a secondary at first) that we could just naturally read epoch time in the same manner we read dates like "28/01/2006 14:24:10 UTC"
In your brain you automatically know how old you were when that timestamp happened. What grade/job and where you lived at the time. What season it was. You know how far into the day it was, a little before lunch (or after or whatever, your time zone will vary). Now try with 1138458250. I can usually get roughly the year, and month if I really think about it, but that's it. And it takes much more effort
I'm sure there's other units we could benefit from but epoch is the one that usually brings this to mind for me.13 -
How do you approach generating "random" unique numbers/strings ? Exactly, when you have to be sure the generated stuff is unique overtime? Eg. as few collisions in future as possible.
Now I don't mean UUIDs but when there is a functionality that needs some length defined, symbol specific and definitely unique data, every time it does it's stuff.
TLDR STORY: Generating 8 digits long numbers so they are (deterministically - wink wink) unique is hard but Format Preserving Encryption saves the day. (for me)
FULL STORY:
I had to deal with both strings and codes today.
One was to generate shortlink word for url, luckily found a library that does exactly this. (Hashids)
BUT generating 8 digits long, somewhat random number was harder then I thought, found out on SO something like "sha256(seed) => bytes => ascii/numbers mangling" but that had a lot of collisions because of how the hash got mangled to actually output numbers and also to fit the length.
After some hours I stumbled upon Format Preserving encryption (pyffx) and man it did what I wanted and it had max 2 collisions in 100k values. Still the solution with this feels hacky af. (encrypting straddled unix timestamp with lots of decimals)6 -
Next time you think you’re failing at a new open source venture, remember the stories of your UNIX ancestors (eunuchs ancestors?) ;)
Unix at 50: How the OS that powered smartphones started from failure
Today, Unix powers iOS and Android—its legend begins with a gator and a trio of researchers.
https://arstechnica.com/gadgets/...2 -
Can someone explain linux to me? I can't see through Unix, Linux, GNU, mingw and all those things which somehow seem to be in the same context but i would like a tl;Dr to save my time :)2
-
Ok, can someone explain to me why the old-Unix overlords decided to use -v in 'grep -v' as flag to invert the result.
It's not fucking intuitive.
Other normal utils will use -v as abbreviation of --verbose or --volume ...
I spent some time digging around this particular script scratching my heads why it's not working.
🤔3 -
What If one day the UNIX time turn it opposite, and starting count down to January 1, 2070. When it comes to zero, it will be the end of world.4
-
I am stuck on a UNIX legaxy project. This is the perfect time to learn awk, sed, vim. I use them but I wanna get better.
I can read a book, course, but I WANT to write code, maybe something like the hackerrank challenges but harder.
How do I get advanced in awk, sed, vim?5 -
Was using an open source piece of software for data storage and visualisation to work with the loggers my company makes. When importing old data for historical views, some of the csv imports would fail without any specific error messages.
It took me a couple of hours but after looking at their csv parser and making my own little one to test with, I eventually found out that it was all down to the way datatime (I think it was?) in java deals with DST, which apparently was to just fuck shit up.
Anyhow, a few simple lines added into the parser later and it all works just fine.
Was super proud of that one as it was the first time I actually looked somewhat good in front of my senior dev. -
!rant
Hi fellow DevRanters! I've been studying software engineering for a while now and, while I love programming, I'm starting to think that all I'll be doing as a software engineer now a days is pulling data from a database, sticking it in a nice gui with some buttons and moving on to the next, similar, project. At the same time I am loving linux more and more, I love working with bash and other unix-like tools and I am interested in systems languages like C and Rust. It is for these reasons that I am playing with the idea of switching to Systems and network engineering. What are your thoughts on this? Is Systems and network engineering a field in which I get to program a lot? Will there be more variation in it? Is my view of software engineering completely off? Please share your thoughts and opinions! -
A philosophical question about maintenance/updating.
There is no need to repeat the reasons we need to update our dependencies and our code. We know them/ especially regarding the security issues.
The real question is , "is that indicates a failure of automation"?
When i started thinking about code, and when also was a kid and saw all these sci fi universes with robots etc, the obvious thing was that you build an automation to do the job without having to work with it anymore. There is no meaning on automate something that need constant work above it.
When you have a car, you usually do not upgrade it all the time, you do some things of maintance (oil, tires) but it keeps your work on it in a logical amount.
A better example is the abacus, a calculating device which you know it works as it works.
A promise of functional programming is that because you are based on algebraic principles you do not have to worry so much about your code, you know it will doing the logical thing it supposed to do.
Unix philosophy made software that has been "updated" so little compared to all these modern apps.
Coding, because of its changeable nature is the first victim of the humans nature unsatisfying.
Modern software industry has so much of techniques and principles (solid, liquid, patterns, testing that that the air is air) and still needs so many developers to work on a project.
I know that you will blame the market needs (you cannot understand the need from the start, you have to do it agile) but i think that this is also a part of a problem .
Old devices evolved at much more slow pace. Radio was radio, and still a radio do its basic functionality the same war (the upgrades were only some memory functionalities like save your beloved frequencies and screen messages).
Although all answers are valid, i still feel, that we have failed. We have failed so much. The dream of being a programmer is to build something, bring you money or satisfaction, and you are bored so you build something completely new.13 -
DevOps With Ruby and Chef on FreeBSD (and Linux)
I am Ops and Dev by heart. I have always automated *nix systems long before any automation framework was invented because I am pretty lazy. Doing stuff more than once manually is just one time too often for me. Imho Ruby is a really elegant language. The same applies for the tools that are built around it. The Chef ecosystem fits into this with its own elegance and stability perfectly because the server is Erlang driven and the rest is Ruby.
Being a Linux and BSD user since the early 90s I have always loved a *nix system for it's concepts and simplicity. One command for exactly one purpose and everything is combineable like letters are combinable to words in my mother language. I have always loved FreeBSD more though. Imho it is even more focused on simplicity. Because it is a really clean approach of system design that envies a base system and keeps 3rd party separated in a clean way for example. It also values classic UNIX philosophies that most Linux distros these days abandon but which saved my life multiple times through better design and execution that also focuses alot more on stability, fault tolerance and ease of use than any Linux I have come across. The hardcore guys should read "Design and Implementation of the FreeBSD Operating System", compare the readings to the Linux way of things and see for themselves.*
*The author acknowledges that this text is his opinion and just his wet dream alone and may not be of any relevance for the sexual lifes of everybody else -
Ok so, Android devs/Unix kernel builders I have a question.
How can I set `make` command to speed up the building process?
I'm very confused because of the N in the `-jN` parameter.
I read someone suggesting N=n_cores+1, btw I have an old dual core PC without hyperthreading eoth 4gb RAM.
If someone can explain me how this parameter works and how ti use it in order to minimize the building time I would be really grateful.
Thanks :)1
Top Tags
Weekly Rant
View