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Today I discovered by myself that...
...in a shell...
...when entering a password (e.g. ssh)...
...and you make a typo... 🤦♂️
...you don't need to smack that backspace key like a maniac! You can just use the clear line shortcut: control+U (^U). This clears all input to the left of your cursor and this also works for passwords.26
This belongs to the small bunch of things that makes me feel that life is beautiful.
For a pretty long time, I wanted to learn Haskell, and recently I really fell in love with the category theory. Now how exciting is that when you found that you can learn them both?
I just started it, and I guess it's a pleasure for any programmer who doesn't whine about math. It's free to read:
Or to build 😉
Please, share your website backup strategies and practices - I have a simple php/mysql webapp and files don't actually have any backup other than the fact that they're also saved in a dropbox, and for DB I have a cron job that will export it daily and send it to my email.
How do you do it? How large are sites/app that you're backing up?6
I had a few interesting ones for my current job. Most of you should of hear it by now, but still a decent brainteasers.
You have 9 pool balls, 1 of which is slightly heavier than the other. You have a balance scale, find the heavier ball. You can only use the scale twice.
Devs, let's not spoil this by actually posting the answer.16
I'm a self-taught 19-year-old programmer. Coding since 10, dropped out of high-school and got fist job at 15.
In the the early days I was extremely passionate, learning SICP, Algorithms, doing Haskell, C/C++, Rust, Assembly, writing toy compilers/interpreters, tweaking Gentoo/Arch. Even got a lambda tattoo on my arm after learning lambda-calculus and church numerals.
My first job - a company which raised $100,000 on kickstarter. The CEO was a dumb millionaire hippie, who was bored with his money, so he wanted to run a company even though he had no idea what he was doing. He used to talk about how he build our product, even tho he had 0 technical knowledge whatsoever. He was on news a few times which was pretty cringeworthy. The company had only 1 programmer (other than me) who was pretty decent.
We shipped the project, but soon we burned through kickstart money and the sales dried off. Instead of trying to aquire customers (or abandoning the project), boss kept looking for investors, which kept us afloat for an extra year.
Eventually the money dried up, and instead of closing gates, boss decreased our paychecks without our knowledge. He also converted us from full-time employees to "contractors" (also without our knowledge) so he wouldn't have to pay taxes for us. My paycheck decreased by 40% by I still stayed.
One day, I was trying to burn a USB drive, and I did "dd of=/dev/sda" instead of sdb, therefore wiping out our development server. They asked me to stay at company, but I turned in my resignation letter the next day (my highest ever post on reddit was in /r/TIFU).
Next, I found a job at a "finance" company. $50k/year as a 18-year-old. CEO was a good-looking smooth-talker who made few million bucks talking old people into giving him their retirement money.
He claimed he changed his ways, and was now trying to help average folks save money. So far I've been here 8 month and I do not see that happening. He forces me to do sketchy shit, that clearly doesn't have clients best interests in mind.
I am the only developer, and I quickly became a back-end and front-end ninja.
I switched the company infrastructure from shitty drag+drop website builder, WordPress and shitty Excel macros into a beautiful custom-written python back-end.
Little did I know, this company doesn't need a real programmer. I don't have clear requirements, I get unrealistic deadlines, and boss is too busy to even communicate what he wants from me.
Eventually I sold my soul. I switched parts of it to WordPress, because I was not given enough time to write custom code properly.
For latest project, I switched from using custom React/Material/Sass to using drag+drop TypeForms for surveys.
I used to be an extremist FLOSS Richard Stallman fanboy, but eventually I traded my morals, dreams and ideals for a paycheck. Hey, $50k is not bad, so maybe I shouldn't be complaining? :(
I got addicted to pot for 2 years. Recently I've gotten arrested, and it is honestly one of the best things that ever happened to me. Before I got arrested, I did some freelancing for a mugshot website. In un-related news, my mugshot dissapeared.
I have been sober for 2 month now, and my brain is finally coming back.
I know average developer hits a wall at around $80k, and then you have to either move into management or have your own business.
After getting sober, I realized that money isn't going to make me happy, and I don't want to manage people. I'm an old-school neck-beard hacker. My true passion is mathematics and physics. I don't want to glue bullshit libraries together.
I want to write real code, trace kernel bugs, optimize compilers. Albeit, I was boring in the wrong generation.
I've started studying real analysis, brushing up differential equations, and now trying to tackle machine learning and Neural Networks, and understanding the juicy math behind gradient descent.
I don't know what my plan is for the future, but I'll figure it out as long as I have my brain. Maybe I will continue making shitty forms and collect paycheck, while studying mathematics. Maybe I will figure out something else.
But I can't just let my brain rot while chasing money and impressing dumb bosses. If I wait until I get rich to do things I love, my brain will be too far gone at that point. I can't just sell myself out. I'm coming back to my roots.
I still feel like after experiencing industry and pot, I'm a shittier developer than I was at age 15. But my passion is slowly coming back.
Any suggestions from wise ol' neckbeards on how to proceed?32
My first software teacher almost made me quit programming for life.
She spent the entire year not showing us how to make a shity app in visual basic. Zero help. We all hated it.
At the end of the year and she realised she had 'forgotten' to teach us 70% of the course. We all failed miserably! I didn't touch programming for almost 3 years. (unless you could MATLAB, which I don't).
That was when I discovered Mehran Sahami's CS106A course on the Stanford website. Honestly the best teacher I've never met! His passion is boundless and mastery of teaching is second to none. Thanks to him I discovered programming and I love it! Karol the robot should get a special mention too!
Good teachers make the world of difference.6
back in my university years, we had a teacher that taught all his courses in the lab. he used to go in, explain something for 15 minutes then the rest is practicing on the computers.
the best part was: he never gave us final exams. it was our choice with a final project and an exam. we surely picked the final project.
this is how programming classes should be taught. he took this approach because he was himself a programmer and knew how much practicing was important . Respect for these teachers.
"it's not a bug it's a feature",
"it worked on my machine",
"i tested it and it worked",
"its production ready",
"your browser must be caching the old content",
"that error means it was successful",
"the client fucked it up",
"the systems crashed and the code got lost" ,
"this code wont go into the final version",
"It's a compiler issue",
"it's only a minor issue",
"this will take two weeks max",
"my code is flawless must be someone else's mistake",
"it worked a minute ago",
"that was not in the original specification",
"i will fix this",
"I was told to stop working on that when something important came up",
"You must have the wrong version",
"that's way beyond my pay grade",
"that's just an unlucky coincidence",
"i saw the new guy screw around with the systems",
"our servers must've been hacked",
"i wasn't given enough time",
"its the designers fault",
"it probably won't happen again",
"your expectations were unrealistic",
"everything's great on my end",
"that's not my code",
"it's a hardware problem",
"it's a firewall issue",
"it's a character encoding issue",
"a third party API isn't responding",
"that was only supposed to be a placeholder",
"The third party documentation is wrong",
"that was just a temporary fix.",
"We outsourced that months ago.","
"that value is only wrong half of the time.",
"the person responsible for that does not work here anymore",
"That was literally a one in a million error",
"our servers couldn't handle the traffic the app was receiving",
"your machines processors must be too slow",
"your pc is too outdated",
"that is a known issue with the programming language",
"it would take too much time and resources to rebuild from scratch",
"this is historically grown",
"users will hardly notice that",
"i will fix it" };11
This story is 100% true.
I got hired onto a team of construction workers to build a house. We set up a meeting with Management to find out what kind of house they wanted us to build, where’s the floor plan, what it’s going to be used for, who it’s for, etc. Management said that they didn’t know all that, we should just get started. They told us that we were going to use “Agile” which means that we just work on small deliverables and build the thing incrementally.
The developer team lead argued that we at least need to know how big the thing is going to be so that we can get started pouring the foundation, but Management told him they just don’t know. “What we do know,” Management said, “is that the house is going to have a bathroom. Just start there, and we’ll know more when it’s done. You have two weeks.”
So we just bought a port-a-potty, and screwed around on the internet for two weeks. Management was outraged. “You call this a house? This is the worst house ever! It doesn’t even have a tv!”
So we bought a tv and put it in the port-a-potty, attached to an outdoor generator. We were going to buy a a dvd player and get it hooked up to cable, but Management rejected the expense request, saying that they didn’t know if we needed it, and we’d come back to that later.
Management decided that we definitely need storage space, so we bought a boxcar and duct-taped the port-a-potty to it. Then to our horror they set up some desks and put a few miserable business interns in there. It went on like this…
After a few years the boxcar grew into a huge, ramshackle complex. It floods, leaks, it’s frozen in the winter and an oven in the summer. You have to get around in a strange maze of cardboard tubes, ladders and slides. There are two equally horrible separate buildings. We’re still using just the one outdoor generator for all power, so electricity is tightly rationed.
Communication between the buildings was a problem. For one of them, we use a complex series of flag signals. For the other we write notes on paper, crumple the paper up, and toss it over. Both of these methods were suggested as jokes, but Management really liked them for some reason. The buildings mostly talk to each other but they have to talk through us, so most of what we do is pass messages on.
It was suggested that we use paper airplanes instead of crumpled up balls, but the fat, awkward fingers of the Business Majors who inevitably take those jobs couldn’t be trained to make them. I built an awesome automatic paper airplane folder, but once again they couldn’t be trained to use it, so they just went back to crumpling the notes up in balls.
The worst part of all this is that it’s working. Everyone is miserable, but the business is making money. The bright side is that this nightmare complex is done so now we know what kind of building they actually needed in the first place, so we can start work on it. Obviously we can’t tell Management anything about what we’re doing until it’s finished. They noticed the gigantic hole in the ground where the foundation is coming in, but we told them that it’s a cache reset, and they mostly ignore it except when the occasional customer falls in.
I’ll probably be out of here before the new building gets finished. I could get a 50% raise by switching jobs, but Management still doesn’t think I should get a raise because I missed a couple sprints.7
0. Plan before you code. Document everything. You won't remember either your idea or those clever implementations next week (or next month, or next year...).
1. Don't hack your way through, unless that's what you intend to do. Name your variables, functions etc. neatly: autocomplete exists!
Protip: Sometimes you want to check a quick language feature or a piece of code from one of your modules. Resist the urge to quickly hack in the test into your actual project. Maintain a separate file where you can quickly type in and check what you're looking for without hacking on your project (For example, in Python, you can open a new terminal or IDLE window for those quick tests).
2. Keep a quiet environment where you can focus. Recommend listening to something while coding (my latest fad is on asoftmurmur.com). Don't let anything distract you and throw your contextual awareness out of whack.
3. Rubber ducks work. Really. Talking out a complex piece of logic, or that regex or SQL query aids your mind greatly in grasping the concept and clearing the idea. Bounce off code and ideas with a friend or colleague to catch errors and oversights faster. Read more here: https://en.wikipedia.org/wiki/...
4. Since everyone else is saying this (and because it merits saying), USE VERSION CONTROL. Singular most important thing to software development aside from planning and documenting.
5. Remember to flout all of the above once in a while and just make a mess of a project where you have fun throwing everything around all over the place. You'll make mistakes that you never thought were possible by someone of your caliber :) That's how you learn.
Have fun, keep learning!3
After over 20 years as a Software Engineer, Architect, and Manager, I want to pass along some unsolicited advice to junior developers either because I grew through it, or I've had to deal with developers who behaved poorly:
1) Your ego will hurt you FAR more than your junior coding skills. Nobody expects you to be the best early in your career, so don't act like you are.
2) Working independently is a must. It's okay to ask questions, but ask sparingly. Remember, mid and senior level guys need to focus just as much as you do, so before interrupting them, exhaust your resources (Google, Stack Overflow, books, etc..)
3) Working code != good code. You are an author. Write your code so that it can be read. Accept criticism that may seem trivial such as renaming a variable or method. If someone is suggesting it, it's because they didn't know what it did without further investigation.
4) Ask for peer reviews and LISTEN to the critique. Even after 20+ years, I send my code to more junior developers and often get good corrections sent back. (remember the ego thing from tip #1?) Even if they have no critiques for me, sometimes they will see a technique I used and learn from that. Peer reviews are win-win-win.
5) When in doubt, do NOT BS your way out. Refer to someone who knows, or offer to get back to them. Often times, persons other than engineers will take what you said as gospel. If that later turns out to be wrong, a bunch of people will have to get involved to clean up the expectations.
6) Slow down in order to speed up. Always start a task by thinking about the very high level use cases, then slowly work through your logic to achieve that. Rushing to complete, even for senior engineers, usually means less-than-ideal code that somebody will have to maintain.
7) Write documentation, always! Even if your company doesn't take documentation seriously, other engineers will remember how well documented your code is, and they will appreciate you for it/think of you next time that sweet job opens up.
8) Good code is important, but good impressions are better. I have code that is the most embarrassing crap ever still in production to this day. People don't think of me as "that shitty developer who wrote that ugly ass code that one time a decade ago," They think of me as "that developer who was fun to work with and busted his ass." Because of that, I've never been unemployed for more than a day. It's critical to have a good network and good references.
9) Don't shy away from the unknown. It's easy to hope somebody else picks up that task that you don't understand, but you wont learn it if they do. The daunting, unknown tasks are the most rewarding to complete (and trust me, other devs will notice.)
10) Learning is up to you. I can't tell you the number of engineers I passed on hiring because their answer to what they know about PHP7 was: "Nothing. I haven't learned it yet because my current company is still using PHP5." This is YOUR craft. It's not up to your employer to keep you relevant in the job market, it's up to YOU. You don't always need to be a pro at the latest and greatest, but at least read the changelog. Stay abreast of current technology, security threats, etc...
These are just a few quick tips from my experience. Others may chime in with theirs, and some may dispute mine. I wish you all fruitful careers!199
Always keep trying, never give up on the bugs you have.even if you have to start over again.
Someone once asked me:
Why do we fall?
I answered him:
To rise up again even stronger.4
I just discovered an app called Shell Launcher, which is a launcher, where you type commands to do tasks :D
I really love it, i feel like a Hacker.
Idk if I'm happier about the usability of the app or the image notifications with the not-yet-crashed background activity or the super cute anime wallpapers but the thing works and looks pretty xD what else could you want from a minor side project :')4