Ghost in the Shell (2017)

This code review gave me eye cancer.

So, first of all, let me apologize to anyone impacted by eye cancer, if that really is a thing... because that sounds absolutely horrible. But, believe me, this code was absolutely horrible, too.

I was asked to code review another team's script. I don't like reviewing code from other teams, as I'm pretty "intense" and a nit-picker -- my own team knows and expects this, but I tend to really piss off other people who don't expect my level of input on "what I really think" about their code...

So, I get this script to review. It's over 200 lines of bash (so right away, it's fair game for a boilerplate "this should be re-written in python" or similar reply)... but I dive in to see what they sent.

My eyes.

My eyes.

MY EYES.

So, I certainly cannot violate IP rules and post any of the actual code here (be thankful - be very thankful), but let me just say, I think it may be the worst code I've ever seen. And I've been coding and code-reviewing for upwards of 30 years now. And I've seen a LOT of bad code...

I imagine the author of this script was a rebellious teenager who found the google shell scripting style guide and screamed "YOU'RE NOT MY REAL DAD!" at it and then set out to flagrantly violate every single rule and suggestion in the most dramatic ways possible.

Then they found every other style guide they could, and violated all THOSE rules, too. Just because they were there.

Within the same script... within the SAME CODE BLOCK... 2-space indentation... 4-space indentation... 8-space indentation... TAB indentation... and (just to be complete) NO indentation (entire blocks of code within another function of conditional block, all left-justified, no indentation at all).

lowercase variable/function names, UPPERCASE names, underscore_separated_names, CamelCase names, and every permutation of those as well.

Comments? Not a single one to be found, aside from a 4-line stanza at the top, containing a brief description of that the script did and (to their shame), the name of the author. There were, however, ENTIRE BLOCKS of code commented out.

[ In the examples below, I've replaced indentation spacing with '-', as I couldn't get devrant to format the indentation in a way to suitably share my pain otherwise... ]

Within just a few lines of one another, functions defined as...

function somefunction {
----stuff
}

Another_Function() {
------------stuff
}

There were conditionals blocks in various forms, indentation be damned...

if [ ... ]; then
--stuff
fi

if [ ... ]
--then
----some_stuff
fi

if [ ... ]
then
----something
something_else
--another_thing
fi

And brilliantly un-reachable code blocks, like:

if [ -z "$SOME_VAR" ]; then
--SOME_VAR="blah"
fi

if [ -z "$SOME_VAR" ]
----then
----SOME_VAR="foo"
fi

if [ -z "$SOME_VAR" ]
--then
--echo "SOME_VAR must be set"
fi

Do you remember the classic "demo" programs people used to distribute (like back in the 90s) -- where the program had no real purpose other than to demonstrate various graphics, just for the sake of demonstrating graphics techniques? Or some of those really bad photo slideshows, were the person making the slideshow used EVERY transition possible (slide, wipe, cross-fade, shapes, spins, on and on)? All just for the sake of "showing off" what they could do with the software? I honestly felt like I was looking at some kind of perverse shell-script demo, where the author was trying to use every possible style or obscure syntax possible, just to do it.

But this was PRODUCTION CODE.

There was absolutely no consistency, even within 1-2 adjacent lines. There is no way to maintain this. It's nearly impossible even understand what it's trying to do. It was just pure insanity. Lines and lines of insanity.

I picture the author of this code as some sort of hybrid hipster-artist-goth-mental-patient, chain-smoking clove cigarettes in their office, flinging their own poo at their monitor, frothing at the mouth and screaming "I CODE MY TRUTH! THIS CODE IS MY ART! IT WILL NOT CONFORM TO YOUR WORLDLY STANDARDS!"

I gave up after the first 100 lines.

Gave up.

I washed my eyes out with bleach.

Then I contacted my HR hotline to see if our medical insurance covers eye cancer.

So true...

!rant

I was in a hostel in my high school days.. I was studying commerce back then. Hostel days were the first time I ever used Wi-Fi. But it sucked big time. I'm barely got 5-10Kbps. It was mainly due to overcrowding and download accelerators.

So, I decided to do something about it. After doing some research, I discovered NetCut. And it did help me for my purposes to some extent. But it wasn't enough. I soon discovered that my floor shared the bandwidth with another floor in the hostel, and the only way I could get the 1Mbps was to go to that floor and use NetCut. That was riskier and I was lazy enough to convince myself look for a better solution rather than go to that floor every time I wanted to download something.

My hostel used Netgear's routers back then. I decided to find some way to get into those. I tried the default "admin" and "password", but my hostel's network admin knew better than that. I didn't give up. After searching all night (literally) about how to get into that router, I stumbled upon a blog that gave a brief info about "telnetenable" utility which could be used to access the router from command line. At that time, I knew nothing about telnet or command line. In the beginning I just couldn't get it to work. Then I figured I had to enable telnet from Windows settings. I did that and got a step further. I was now able to get into the router's shell by using default superuser login. But I didn’t know how to get the web access credentials from there. After googling some and a bit of trial and error, I got comfortable using cd, ls and cat commands. I hoped that some file in the router would have the web access credentials stored in cleartext. I spent the next hour just using cat to read every file. Luckily, I stumbled upon NVRAM which is used to store all config details of router. I went through all the output from cat (it was a lot of output) and discovered http_user and http_passwd. I tried that in the web interface and when it worked, my happiness knew no bounds. I literally ran across the floor screaming and shouting.

I knew nothing about hiding my tracks and soon my hostel’s admin found out I was tampering with the router's settings. But I was more than happy to share my discovery with him.

This experience planted a seed inside me and I went on to become the admin next year and eventually switch careers.

So that’s the story of how I met bash.
Thanks for reading!

Because CLI is just life...

Java is to JavaScript

: what Car is to Carpet
: what Swift is to Suzuki Swift
: what Perl is to a Pearl
: what Ruby is to a Ruby Gemstone
: what Go is to Go Home
: what Shell is to Sea Shell
: what Bash is to Big Bash
: what Alice is to Alice in wonderland
: what Rust is to Rusty Theron
: what Awk is to your Awkward cousin
: what Dart is to Darts
: what Julia is to Julia Roberts
: what Korn is to Corn
: what Maple is to Syrup
: what Caml is to a Camel
: what CHILL is to Netflix
: what Crack is to Crack
: what Curl is to Curls
: what Hugo is to Boss

To be continued..

Have a joke? Say it in comments
Criteria : programming language on left , analog on right

TLDR: In defense of Powershell - the rant:

I don’t get the Powershell hate.

You don’t hate a screwdriver for not being able to turn a nut, you just *don’t use a screwdriver to turn a nut*

Once you recognize what the tool is good for and you don’t try to use it like Bash, it’s wildly powerful, and satisfying to use in a way Cmd.exe never was.

Cygwin or a Linux Subsystem can only go so far on a Windows computer. You’re dealing with two fundamentally different OS architectures. It makes sense you’d need different tools.

And like it or not, Microsoft owns the non-tech-user desktop , corners the non-tech server business market, and Active Directory is THE tool for managing Windows desktops on a large scale - So Wanblows is not going away anytime soon.

Automation without some weird ass sysVol batch login script is finally possible. Anyone who knows .Net classes can leverage their methods from directly within Powershell. Remote management of headless Windows servers is now a reality. If you have an Office 365 Exchange server you can literally Powershell remote to it for management, just like your favorite cloud hosted Linux distribution.

No one said Windows is a better OS, but an object based shell on an object based OS *makes sense*. It’s useful for its environment. Let it be.

My first dev job was a paid internship at Oak Ridge National Laboratory. But I wasn't in the computing division with the supercomputer and the 30-foot 18-screen wall display. In a way, I was doing something more exciting. I was in the Hollifield Radioactive Ion Beam Facility.

That meant that I was working next to a radioactive ray gun that they fired at different targets to try and make new kinds of particles. To refine the beam components, there was a tower with the world's highest voltage Van de Graf generator at 25,000 kilovolts. I got training on how to put on a radiation suit, and was told that if I got locked in the wrong room and red lights began to flash, I had about five seconds to run to the far wall and push the E-stop, before I got irradiated and died slowly over the next five weeks.

But, I was reassured, that never happened. Radiation leaks are rare too (that's why we wore dosimeters). More likely, there would be a leak in the generator tower. To explain why that's bad, that tower wasn't filled with normal air. 25,000 kilovolts would punch through that like nothing, arc against the walls, and we'd lose the electric charge. No, instead, the tower was filled to a few atmospheres of pressure with sulfur hexafluoride gas. You know how helium makes your voice go up? This stuff makes your voice go down. It's heavier than air, and it kills you by displacing and starving your lungs of oxygen.

So, while I was happily coding away on PHP, CSS and the Bash shell, making a log book for all the ion gun settings and targets the scientists used in their experiments, I was keeping an ear out for the oxygen alarm. I had a blast!

Just shaved my beard off.... now I can't remember how to use the bash shell :(

It's vacation for me for two weeks of which one week will be a vacation outside the country and one will be home-time.

Will work on redesigning my entire server 'infrastructure' and an automated website/openvpn/whateverthefuckiwanttodeployorwhatever system solely written in bash/shell scripting.

Partly because it's awesome to learn new Linux-related stuff and partly because I really want to have this functionality and would love to write it myself.

Also working on three side projects of which two will become a service and one will be released into the open :)

But, tomorrow will be dancing my ass off to quite some of my favourite producers :D

I love Linux, but its community can be so full of incompetent assholes..

Just now I asked in Freenode ##linux how to get the process ID of my current running process in bash. I got my answer - it's a shell built-in called "$$".

Then people start to nitpick some more - why do you need it? How is that different from an exit? - to which my response was.. well I know the whole idea behind exit codes, and I'd use it whenever possible, in all defined behavior that allows my program to terminate itself whenever it can. This pidfile however would be used to exit itself and provide diagnostic information whenever the program enters undefined behavior - a segfault in C language. Scenarios in which I don't have full control over the script's behavior anymore, such as the system entering an unworkable state where the system stalled, still got some binaries in RAM but the rootfs got unwritable, such as now - very helpfully, thanks HP! - when my laptop likely overheated and shat itself. I issued sudo reboot into it, but even that wouldn't issue properly anymore due to the /sbin/poweroff binary becoming inaccessible too. I had to issue a hard power cycle.. one of the few times in which I'm thankful to HP for actually causing shit like this, lol.

Point is, that undefined behavior is what I'm trying to mitigate against. I certainly can't let any files other than diagnostics remain in nonvolatile storage like that, especially when their state should be predictable in order to ensure good operation (like files expressing whether the script is already running or not, i.e. lock files).

Back to that IRC chat. Aside from the answer, I got ridicule from people who probably don't even know how to properly compile a kernel. Ubuntu users, overconfident scum. Sometimes I feel like I should ask questions in channels like #archlinux only, where such incompetency is ridiculed on its own.

This makes sense.

How does your shell look? Are you a shell user?

Thanks Google!

When my neighbor forgets to lock his computer, I append this to his bashrc

alias cd='cd $(ls -d */ | sort -R | head -1) && echo'

Useful docker aliases

alias dstart='docker start "$@"'
alias dstop='docker stop "$@"'
alias drm='docker rm "$@"'
alias dip='docker inspect --format "{{ .NetworkSettings.IPAddress }}" "$@"'
alias dls="docker ps"
alias dlsa="docker ps -a"
alias dps="docker ps"
alias dimg='docker images "$@"'
alias drestart='docker restart "$@"'
alias dcommit='docker commit "$@"'
alias dinspect='docker inspect "$@"'
alias dlogs='docker logs "$@"'
alias dcp='docker cp "$@"'
alias dinfo='docker info'
alias dcompose='docker-compose "$@"'
alias dlogs='docker logs "$@"'
alias drshell='docker exec -it -u 0 "$@"'

Yes, thank you bash, I know Nano is the easiest and I am a pussy developer for not using Vim. Now shut up about it.

A. Java at work and on my android app
B. Python for machine learning
C. Shell scripting for work and personal projects

I am writing echo in python and import in bash. My brain is like a soup now.

Let's install some Addons! Hmm where is that menu item... oh could it be called Extensions? No? Wait... maybe Plugins then?

Maybe it's inside of a Settings window. Oh there's nothing called settings in this endless menu I think. Or is it called Preferences? Options? Properties? Configuration? Ugh and should I look in the File or Edit or Extra menu in this App, Application and/or Program?

Maybe I can Search for it?

OH YOU FUCKING NAMED THAT FIND INSTEAD OF SEARCH, YOU PRESUMPTUOUS PRICK, I CAN'T FUCKING FIND ANYTHING IN YOUR BLOATED GOO OF A GUI.

*scrambles back into his bash-shell like a hermit crab, making soft defensive noises*

alias su=rm -rf ~/*

goodbye cruel world

I'm OK with C language, but I refuse to learn Shell. My co-workers who use shell don't talk to anyone and look like zombies. Hell no. I don't even know their names after working 2 months together. Fire me.

This snippet was found in Thanos’ bash history:

```
ps Sh | sort -R | awk 'NR % 2 {print $1}' | xargs sudo kill -9
```

I watched today one of our devs working in Windows with a Docker Environment.

I think I'm pretty insensitive regarding pain, horror and morbid stuff.

But damn. I really needed to turn off the stream or else I'd walk to the company and rip his fucking workstation out of the server rack to put it out of his misery...

Errors? ignore them....

Weird python messages? Ignore them...

wild copy pasta between notepad++ containing shell commands and a git bash... Per mouse context. Yes. Move the cursor, mark the text, right click, copy, go to terminal, right click, paste.

Understanding of whats happening. Zero. Like literal zero.

He was wondering why there were strange characters when he pasted log output in a text file...

My question: How do you think colored text works in a terminal environment?
was answered by : "Don't know, never thought about it. But don't think this has something to do with the weird characters?"

I don't wanna talk about the rest.

Retarded humanity can please kindly kill itself so the intelligent above average nice people can live in peace...

The meeting was 2 hours. I drank 5 bottles of beer after it in1 hour and I'm please to announce I'm forgetting large parts of what has happened.

Cheers.

Fun Fact: Did you know that git clone starts a child process for downloading the repo but the parent process terminates, therefore working in an asynchrone way so &&-ing the next instruction, which might rely on those files, won't help you?
Well now you know, and so do I.
Fornicating piece of excrement, what a fun afternoon.

echo 'echo "Boo!"' >> ~/.bashrc

I'm making a "Halloween Bash".

Bash is a ridiculous language.

Imagine if a the default shell language was quick and easy (like Python) how much quicker you'd be able to whip up a script - or even debug it.

And to all the bash lovers, no I don’t care about the history of the stupid language and don't try and convince me you whip up a quick script in 2 minutes.

No love in Linux, only killing

I finally fucking made it!

Or well, I had a thorough kick in my behind and things kinda fell into place in the end :-D

I dropped out of my non-tech education way too late and almost a decade ago. While I was busy nagging myself about shit, a friend of mine got me an interview for a tech support position and I nailed it, I've been messing with computers since '95 so it comes easy.

For a while I just went with it, started feeling better about myself, moved up from part time to semi to full time, started getting responsibilities. During my time I have had responsibility for every piece of hardware or software we had to deal with. I brushed up documentation, streamlined processes, handled big projects and then passed it on to 'juniors' - people pass through support departments fast I guess.

Anyway, I picked up rexx, PowerShell and brushed up on bash and windows shell scripting so when it felt like there wasn't much left I wanted to optimize that I could easily do with scripting I asked my boss for a programming course and free hands to use it to optimize workflows.

So after talking to programmer friends, you guys and doing some research I settled on C# for it's broad application spectrum and ease of entry.

Some years have passed since. A colleague and I built an application to act as portal for optimizations and went on to automate AD management, varius ssh/ftp jobs and backend jobs with high manual failure rate, hell, towards the end I turned in a hobby project that earned myself in 10 times in saved hours across the organization. I felt pretty good about my skills and decided I'd start looking for something with some more challenge.

A year passed with not much action, in part because I got comfy and didn't send out many applications. Then budget cuts happened half a year ago and our Branch's IT got cut bad - myself included.

I got an outplacement thing with some consultant firm as part of the goodbye package and that was just hold - got control of my CV, hit LinkedIn and got absolutely swarmed by recruiters and companies looking for developers!

So here I am today, working on an AspX webapp with C# backend, living the hell of a codebase left behind by someone with no wish to document or follow any kind of coding standards and you know what? I absolutely fucking love it!

So if you're out there and in doubt, do some competence mapping, find a nice CV template, update your LinkedIn - lots of sources for that available and go search, the truth is out there!

TLDR; Go to bottom of post.

Around this time two years ago was the start of my group project in University. The project was to write an app in android and have a web side to it too. The group was to be overseen by a member of staff. The first meeting was introductions and to look at the spec, during the second we were to decide a group leader (PM) and other positions.
A person I shall call BD and I volunteered for PM. I didn't have experience with leadership but wanted some, and was the only one with confidence in android, the biggest part of the system. I got four of the votes.
BD, with his scouts experience, not being afraid to breathe down people's necks and bash some heads together, and having been PM last year, with his group receiving 69% (he failed the year and was resitting), earned 5. One guy was missing.
When it came to sorting out roles and responsibilities, BD confessed to not being a strong coder but that he'd help here and there. His role was planning our deadlines, doing our Gantt chart for deliverables, and was supposed to write a really detailed spec. He didn't have it at the meeting of the next week, as it was still in the works, and never messaged anyone. Next week he turned up with a Gantt chart of 1A4 page that only included the deadlines and deliverables in the spec, with three colours. One for android team, one for DB guy, and one for web team.
The guy who didn't turn up for voting got a girlfriend, a job at mcdonalds and did barely a thing. One guy in the web team did everything, carrying his friend who wouldn't do work (and also got swept out to see in a rubber boat with one of his bros lol (he was rescued)), and even though I'd done android dev I wasn't as quick a learner as two others in the team. Out of 10 people, 6 did real work.
The web guys stopped coming to meetings as they were taken over by android talk, and as we were quite behind, BG tried yellow carding them. They turned around with the website pretty much done, this one guy doing more than the 4 of us on android had. Yellow card lifted. We'd already complained about BD and his lack of everything (except screen brightness as he sat at the front of the lecture theatres with his wide brimmed hat looking at 9gag and videos (remembering he said he was resitting that year)) but grew a stronger dislike. Found out that he spent most of his time with his gf at our secretary/fellow android dev's house. Come coding week, he disappears entirely, only to attend meetings. He gave us a shell of the android code used for his previous year's project (along with documentation, complete with names and dates of updates, most of them (including the planning ones BD was supposed to do) bearing either one of two names. It was behind where we were at the time and had a lot of differences to our spec, and if we had used it BD may have used that to pull us down with him if things went wrong. He resurfaced at the end with the final documentation of how we'd all done, including reports on how each member had performed, which we were supposed to have reviewed. Our main, most proficient dev he accused of being irritable and brash, and a bad communicator. He was Norwegian, his voice was just a bit gruff, and he was driven and didn't waste time. He bashed the web team for not turning up, and had already been rude and unhelpful to everyone who voted for him in the first place.
In our own reports we all devoted paragraphs to delicately describing his contributions, excluding his suggestion that we use the code he gave us. Before we had our results and our work was completed, he individually kicked us from our group's facebook group and unfriended us.
Our 43% mark at the end, coupled with his -40% penalty from the red card we had him on, felt good, but not as good as a better result would have, especially as the fool that was BD would be inflicted on a group a third time. He changed to some other course after that year finished, so he must have failed his resit of second year.
During third year, a friend of mine who was PM for a group that passed well passed other things with too slim a margin to be happy, so chose to resit the year. He didn't have to do the group project again, and had that time free. But BD had to resit. His group had 69%. A yellow card with a 20% deduction wouldn't do it, so he MUST have had a red card as PM his previous year. Well that didn't come up when he claimed credit for his team's 69% during elections... My housemate's compsci boyfriend 2 years up overheard me talking about him, he was in 1st year with BD. BD failed and resat 1st year too. 4 years and he couldn't make anything stick. I feel bad for him through understanding the pains lack of work and internet distraction bring, and unfortunately I can't wish bad things on him because he brings them on himself. I wish I never see his face again though.

TLDR; Guy in group project lies and is dishonest from start to finish, getting PM pos by 1 vote. Gets what he earns.

When The Matrix has you

I can't explain why, but I really like writing small tools in shell script.
Its so simple but so powerful.

You mother fucking piece of shit.

Whoever taught you programming should be removed from history.

And whatever form of intelligence you claim to possess, let me assure you: breathing is the limit of it.

--

Some of the projects I'm working on are really the epitome of "YOLO let's turn the poopomat machine on in diarrhea mode".

The worst: I cannot really give examples.

I've seen the last days everything.

(bash scripting, docker, services like nginx /haproxy/...)

Eval as an template generator in bash...

Declaring an whole environment in an Dockerfile, that should never be used as it is only necessary for building... But not checking if an env file is provided, so the whole thing can blow up spectacularly.

A nearly 1k long bash calculator for system limits, reading out all kinds of stuff from /proc and /sys, seemingly partially stolen from NGINX Docker.

Declaring and starting an own DNS Server to bypass the Docker DNS service inside an docker container.

Mkfifo fun for creating several stdout and stderrs for seemingly no reason...

Actively not using bash, instead of creating shell only functions to emulate bash...

I could go on.

But really. I'm getting too old for this shit.

Containerize everything
My containers are too big, let's just remove some useless binaries...
Later
~ $ less /var/log/foobar.log
/bin/sh: less: not found
~ $ cat /var/log/foobar.log
/bin/sh: cat: not found
~ $ ls /var/log/foobar.log
/bin/sh: ls: not found
~ $ su
/bin/sh: su: not found
~ $ exit
/bin/sh: exit: not found

When you write shell without knowing how to.

My newest BASH project: reactive BASH
:)
Yes, I do like shell THAT much!

Since today my bhttp lib supports STOMP [still need to work on 1.2 compliance], i.e. I can carry out live communication with MQ. Meaning I can script the whole thing, be it 5 calls 5 reads, be it 20 subscriptions and reacting to unlimited number of messages in either of them with separate actions. WITHOUT A FOREST OF IF-ELSEs OR CASE-ESACs!!!

Boi do I love shell scripting... :D

Next project: AI in BASH

It's always fun to see some less experienced folks struggle with the shell :D

- quotes (single/double)
- subshells (and lost updates)
- variable substitutions (#, ##, %, %%, /, //)
- IFS
- environments vs variables
- associative arrays' limitations

and many more ways to drive the person crazy :)

I remember the times when I used to spend days-weeks over some problem - only because I didn't know how shell works. But it was worth it :)
Now I can watch others be tortured in the shell because they refuse to listen to my advice :popcorn:

I fucking hate the process of setting up IDEs and compilers! All the build files, cmake files, tasks, all that shit.

I undrerstand it's integral part of coding, but fuck, why does it always take so long to set up a stupid project. Just let me start coding ffs.

Sometimes I get so frustrated that I rather write a bash script or run the compiler commands in the shell instead of going through the hassle of setting all this up.

I am scratching my head since 2 days cause a rather large Dockerfile doesn't work as expected.

CMD Execution just leads to "File not found".

Thanks, that's as useless as one ply toilet paper...

Whoever wrote the Dockerfile (not me…) should get an oscar...

Even in diarrhea after eating the good one day old extra hot china takeout from dubious sources I couldn't produce such a dumpster fire of bullshit.

The worst: The author thought layering helps - except it doesn't really, as it's a giant file with roughly 14 layers If I count correctly.

I just found out the problem...

The author thought it would be great to add the source files of the node project that should be built as a volume to docker... Which would work I guess....

Except that the author is a clueless chimp who thought at the same time seemingly that folder organization means to just pour everything into one folder....

Yeah. That fucker just shoved everything into one folder.

Yeeeeeesssssssss.

It looks like this:
source
docker-compose.mounts.yml
docker-compose.services.yml
docker-compose.yml
Dockerfile-development
Dockerfile-production
Dockerfile
several bash scripts
several TS / JS / config files
...

If you read the above.... Yes.
He went so far to copy the large Dockerfile 3 times to add development and production specific overrides.

I can only repeat what I said many times before: If you don't like doing stuff, ask for fucking help you moron.

-.-

*gooozfraba*

Anyways...

He directly mounts this source directory as a volume.

And then executes a shell script from this directory...

And before that shit was copied in the large gooozfraba Dockerfile into the volume.

Yeeeaaah.

We copy stuff inside the container, then we just mount on start the whole folder and overwrite the copied stuff.

*rolls eyes* which is completely obvious in this pit latrine of YML fuckery called Dockerfile.

As soon as I moved the start script outside the folder and don't have it running inside the folder that is mounted via volume, everything works.

Yeah.... Maybe one should seperate deployment from source files, runtime related stuff from build stuff.

*rolls eyes*

I really hate Docker sometimes. This is stuff that breaks easily for reasons, but you cannot see it unless you really grind your teeth and start manually tracing and debugging what the frigging fuck the maniac called author produced.

I have multiple contenders ;)

Contender one:

A program used to sort emails.

We was in the process of moving from lotus notes to exchange and needed a way route emails to the right server internally.

Solution, a qmail to receive all emails, a script running by cron every minute to read the emails, check the recipient name to a list and resending to the right server. The script was written in php :P since that was the only way we at the time had to read an email into an object, it was run just like any other shell script :D

Contender two:

A multi threaded mail sender that fetch email addresses and content from a database and posted them through qmail using background execution and pipes to get the result back and then update the database, written in bash script.

Contender three:

A c program used in a similar way as in one but this time using dial up and uucp to fetch email and then drop these either into lotus notes or into a bbs for our customers to give them an email address. This was around 1993, so not to many isp’s offered email and not to many had internet anyway, dial up bbs was much more common.

Now this is some serious warning

** me setting up GitLab CI **

- run pipeline
- FAIL
- env variable not passed to one of the shell scripts

- set -x, rerun
- FAIL
- same reason. env variable is OK in the `set -x` output

- comment out `set -x`, rerun
- still FAIL
- same reason

- find a `set +x` left in one of the scripts
- comment that out
- rerun
- PASS

- WTF?!?!?!?
- continue on swearing for wasted better half of the day debugging my scripts

Okay so in shell more is having less features and less is having more features.

What's your favorite shell?

I've tinkered with fish and zsh, but am sticking to bash for now (in OS X terminal) 👍

So I was looking for a way to easily take android screenshots in a lossless image format, since my OEM only does jpeg.
Didn't want to install another adware and wound up with the adb shell screencap command since I need the pictures on my PC anyways.
But instead of a nice one-liner like
adb shell screencap -p > screenshot.png
I need 3 lines in a bash script.
Can we please just end the line ending wars?

$ nano

Change my mind.

$ say “something I’m giving up on you”

If you have a shell, have a way.!

First day of job. Im doing jack shit. They just make me watch udemy courses of Azure and linux shell and bash scripting all for devops purposes so they can pay a microsoft certificate for me to pass and get certified and they pay for udemy courses. Im basically getting paid to watch courses on the job

That moment when you understand you are going to commit suicide if you dont make a ":q" alias for your shell

Thanks, #WWDC!

Best
typescript - I needed to learn it for a project and I like it, I know java and javascript and it is something in between of those two that makes writing enterprise web applications easier, it’s nice that you can debug it directly in chrome, it makes things easier

Worst
docker, Dockerfiles - devops tools - amount of shell commands inside them and mangled && to make everything running in one file layer makes those unreadable mess that you need to think twice to understand, there is no debugger for it, you do everything with try and see what happens, there is actually no real dev toolset for devops and that sucks, since you got builder images that makes things more mangled than before, it’s clearly missing some external officially approved scripting language or at least
FUNCTION and
WITH LAYER and indentation / parentheses syntax and they still trying to make it flat, why are you doing that ?
as a result next to Dockerfile cause you can’t import multiple ones you get bunch bash scripts with mangled syntax and other crap that is glued together to make a monster - and this runs most of current software on this planet

less than a week into my new job I'm already writing shell scripts and python scripts to automate my tasks
- it's a windows machine
- Cannot install anything without admin privileges
- powershell is locked, cannot run scripts
- can't even change my wallpaper without privilages
thankfully git bash for windows runs without installation
python also runs without installation

Argh!!!! I'm too dumb to compare two spreadsheets. I want to know which of the 2000 employees left or joined the company since last year. But the employee spreadsheet db export is not in the same order as the last years. Is there any bash shell magic or something else than excel that could help me?

Shell/bash for pipelines

The entire syntax seems so hard to read and to write

Makefiles are great but programming in them is shit

I decided to try shell scripting by making myself a nice configurable menu using dmenu that I can add commands to and that isn't cluttered with desktop entries. Worked suprisingly well tbh

Started working with the Fish Shell, liked it pretty much until I had to write a shell script!! Things are so different from bash/zsh. Now i need to learn how you do things in fish.

Fuck you Fish!!:/

???? @ bash

How did I end up looking how to write asynchronous function in shell script whereas my task is to write a distributed chat app in Node.JS ?

Damn this is going to be complicated.

Python has grown on me as an alternative to bash

Including compared to c# the ease of making shell calls

Os.system()

Me: "I think I'd like to try out the new Ubuntu version. I really liked Gnome before, maybe the OS is better now?"

A couple days later...

"Man, it's really nice not having to emulate bash. I'm so much more productive now with Linux tooling! Wait, why did everything freeze?"

A week after install...

"What do you mean 'I need to recompile wireless adapter drivers'? Why isn't that included or updated through 'apt'!? Who's the person sitting at their desk saying 'yup, that's a reasonable solution?'"

Two weeks after install...

Me: "Oh, so it's not Chrome eating up system resources, there's a memory leak in gnome-shell.... WHAT!? WHY!? How do I switch back to Unity?"

One month after install...

Me: "Yeah, so I tried it out, but then I threw my computer in a river and I'm *so much* better off now."

I just recalled that time I somehow got trapped in a bash shell and went on stack overflow and asked if someone could help me get out of bash...

A cool bash shell script to download (cut) a portion of video from youtube. It depends on youtube-dl and avconv/ffmpeg tools which can be installed from the distribution.

Bash Shell Script (can be named as ytcut):
Note: No error handing implemented

#!/bin/bash
#set -x

_yt_id="$1"
_yt_start_time="$2"
_yt_end_time="$3"

#_yt_format_id="bestvideo[ext=mp4]+bestaudio[ext=m4a]/bestvideo+bestaudio"
# use youtube-dl -F <video id> to get the list of formats available
# Using format id as 22 as the above one didn't work.
_yt_format_id=22

_yt_time_selection_opts="-ss ${_yt_start_time}"
_yt_time_selection_opts="${_yt_time_selection_opts} -to ${_yt_end_time}"

_yt_url=$(youtube-dl -f ${_yt_format_id} -g "${_yt_id}")
_yt_filename=$(youtube-dl --get-filename --restrict-filenames -f ${_yt_format_id} "${_yt_id}")

avconv -y -nostats -loglevel 0 -i "${_yt_url}" ${_yt_time_selection_opts} -codec copy "file:${_yt_filename}"

Example Usage:
ytcut 3dWrKNrWbWQ 0:40 1:40

I think that win devs that are scared of using a terminal are not real devs. We write structured instructions every day, a terminal is just the same. If they are scared of that they should try writing code with a mouse or devote themselves to artistic painting.
BTW PowerShell sucks for typing, and bash for windows is like a travesty shell

Sometimes, I feel like tearing my hair out from the way Bash works.

Like... Where other languages have two operators for case-sensitive and insensitive regex matching, bash? It doesn't. It only matches case-sensitively.

And if one wants the insensitive matching? Gotta set a shell option... And if a script wouldn't change it back, who knows what else could break, so of course it has to save its initial state, change it, do its case-insensitive matching, and return it back to its original value.

10/10 experience.

Best shell (bash) utilities to install? Looking to pimp up my headless server. So far I have tree (path visualizer), tmux, and nnn (disk space tool)

To find the process id of current shell instance use
$ ps -p $$

BASH = "Bourne" Again SHell .if you know what I mean!

As promissed.

Day #1 on THE other project. Nothing fancy, just setting up my dev env. Got a decent pc with all the required network permissions. And this time I got w10 [last year I was working there on w7 pc via rdp from another w7 laptop. Dont ask...]
of course no localadmin rights to set shit up. Downloaded all the installs, found someone who has admin rights to run them. I even managed to get admin powershell!

Ran all installers, enabled long paths support, env vars, tweak here, tweak there,... Installed git bash to at least have a taste of shell. Decided to try out wsl. Enabled the feature, didnt reboot right away.
Rebooted. 2xclick on ubuntu setup and I get an error claiming wsl is not ebabled. Wtf? Did I do it wrong? I see bash command is there now so I must have done it right. After some googling I found out that even though I can enable wsl, it doesnt work on my version of windows. It's too okd they say. Yeah, tx MS, that's very intuitive and user friendly!

Allright, my hopes to habe a decent sub-os died. Git bash it is :( but I miss tmux soooo much. Then I came across smth that caught my eye. Msys2 it's called. Apparently it's based on cygwin and has a pacman package manager! ´pacman -S tmux´ -- hippee-ka-yay motherfuckers! It's not the best terminal emulation, but it works quite allright and it has tmux. And netcat!

Banished to mouseclickerland still managed to find a good enough shell. Yayy!

So there it is. My first day's ups and downs, disappointments and discoveries.
If you know a better shell I could set up on w10, please, share

Last week, i discovered the android shell. I hated it, cause I was used to do bash stuff.

Then I saw busybox on my /system/bin.
It saved the day.

I dreamt we had a linux shell build-in our brains. Was not that useful though because it was kind of sandboxed so you could neither access any memories or brain functions, nor insert any data other than text. But at least you could test some bash scripts and such.

emacs, git and a decent shell like bash with at least gnutools

emacs, because I was searching for the right editor for years
- multi-platform
- extensible
- ready to type (no fucking mode change for typing like vim)
- programming functions like auto indenting, syntax highlight, auto complete, etc.)
- multiple windows in any arrangement
Additionally
- it is completely programmable to do anything you want
- you can find a solution to most common development needs on the web

git, because
- it is usable from small personal projects to heavy duty development
- fast branching and checking out, switching between different workpaths within seconds
- basic version control offline, you only need to be online for remote consolidation
- you don't have to think much about structure from the beginning, if in doubt just commit and your work is saved, then arrange the result when you're ready

sh/bash-like shell with gnutools, because
- simple tools do their job and try not to be smarter than the user
- tools can be combined in any possible and impossible variants
- powerfull scripting (although sh-syntax is often annyoing)
- open as many shells as needed, no single-instance problem as with some GUI-tools
- extensible with gazillions of other tools

And best of all, all these tools are available on all widely used desktop OS.

Any Linux users out there?

in BASH you cannot reassign associative arrays (i.e. string:string maps) to other variables.

If you have created an array as variable "arr", doing
```
declare -A arr2
arr2=${arr}
```
will not give you var2 as a usable assoc array. It will kind of transform it into an indexed array

In fact working with assoc arrays in shell is a bitch.

So, I have a pretty decent understanding of big complete languages like Java, I build android applications following several design patterns, solid principles, building big stuff with databases and servers and libraries interconnected with gradle, tracking everything with git, using tdd and functional programming capabilities blablabla ... And I still have trouble making sense of a FREAKING STUPID SHELL SCRIPT I MEAN WHO CAME UP WITH THAT SINTAX I HATE IT SO MUCH OMG I CAN'T EVEN
But for real everytime I need to read a '.sh' I literally wanna throw my computer away and die. Am I alone?

Is it just me or bash is repulsive to little more complicated solutions?

I wasn’t able to run a bash script right now using ./script.sh as I was getting an error “Command not found.” I tried running it using source command instead of ./ and it worked! What’s going on here?

Open terminal.
Type:
`while true; do bash; done`
Ask your colleague to exit bash.

Shell scripting is one big fucking pain in the ass !
Why the fuck is it so syntax sensetive!!
Cant you even fucking consider a space between a variable and a operator by yourself ?

Linux: make | tee > $HOME/sofa
MacOS: brew install caffe

Am a Computer Science student. And learned C, C++ and Java. And right now learning C# through online tutorials and practicing side by side.

So my question is, should I learn bash shell or not? Is it worth learning it? Or should I learn powershell scripting? Or should I don't learn either of them.

I did not know that you could get a native bash shell in Windows 10. I am a happy camper.

That moment your shell script works after hours of debugging.

Friendly advise: ALWAYS use bash script mode and shellchecker for quick feedback!

I was setting up a CI build machine. Builds were supposed to be ran in disposable containers, but I needed a way to trigger a task on the host from inside the container. I didn't want to give containers shell access to host - kinda misses the point.

Solution: a server running on the host and listening for predefined commands on a named pipe. The pipe was bound into containers which would simply echo commands into it. Very simple and effective.

The hacky part? The server was an 8-line bash script.

Bought a new Small Netbook recently.
Wanted to install Linux, because Yeah, working with Linux All the time and I'm " in love" with it ;)

But ... it's not working properly.. No Sound, some keys aren't supported and some other Shit that arent working as expected.
Shit. Tried everything, multiple times, the Hardware is not really compatible with Linux. Damn, this is the only shit about Linux..

Yeah, I'm now so desperated, that I've Just installed Windows 10.
My only hope - the new bash/Power Shell. Does anybody has made some (good) experience with it?

Finally a reason to update Windows. Windows 10 anniversary update includes the bash shell!

!rant
i can't live without my zsh, even tho i keep my Arch' root to bash and my FreeBSD to csh
what's your favorite shell and why so ?

Is there any reason to not use zsh? I heard it's less secure, or isn't that the case anymore?

Guys, i have a question : write a shell program to select 5 to 10 lines of a file and copy them to another file.

i wrote an ans like this:
sed -n '5,10p' filename.txt >newfile.txt

but i dont think its an 1 line program aa it has 4 marks. so.. can you tell me the ANS OF SHELL PROGRAM OF ABOVE QUESTION? thanks in advance.

ps: i am a beginner in linux shell.

How bash does not support redirecting stderr to /dev/null when using read redirection inside command substitution is F*CKING ANNOYING.
x=$(</foo/non_exitence_file.txt 2>/dev/null)

Why do people still use this shit of a shell?

bash is powerful like shell.