10 protips I wish I knew sooner as a software dev (beginner) anthony explains

here's ten quick things you can learn to level up your bash / terminal skills.
- github.com/asottile/scratch/w...
- more powerful than control-C: • more powerful than con...
- fc / fix command: • bash protip: fc "fix c...
playlist: • anthony explains
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[@mCoding]

Wow I didn't realize !! is treated like an escape sequence, so it will expand even inside quotes (double quotes, but not single quotes). I can imagine someone going echo "hello world!!" and being very confused.

[@anthonywritescode]

heh and this is why I almost always use hard-quotes (single quotes)

[@TheKittko]

hah, quite the gotcha indeed

[@blumer4029]

Or trying to do a commit with the inline message "Done!!"

[@andrewf8366]

I actually had this happen to me early on when using bash.

[@TheKittko]

one pro tip i use all the time is jobs. Ctrl+Z to suspend/pause the current shell command and then fg to get back to it. jobs to list all currently suspended commands.

[@anthonywritescode]

yep -- I go over that in kzbin.info/www/bejne/opy0gIR3mJtokKM

[@StanislavSchmidt1]

Nice, some really good-to-knows there :) I also like Ctrl+p+q for detaching from an interactive docker container.

[@_baco]

I think `Ctrl+Shift+u` for unicode is not Bash, but rather a GTK+ feature; which is where the shell session is running (inside a gnome-terminal, which happens to be GTK+). It also works in many other shells inside a GTK-based terminal, and further-more even in the web-browser. For instance, it doesn't work on Bash running inside Alacritty, and it works different on Kitty Terminal

[@anthonywritescode]

indeed! a few have shown me this before as well

[@john_critchley]

Should have mentioned this (coppied from bash(1)): operate-and-get-next (C-o) Accept the current line for execution and fetch the next line relative to the current line from the history for editing. A numeric argument, if supplied, specifies the history entry to use instead of the current line. Basically in bash, after doing a reverse search (C-r) you can run that command and get the next ready to run, and the next and the next... (possibly changing them before running) This is very useful.

[@jinhopark3671]

Absolutely love these kind of videos! Thanks :)

[@joshsnyder5882]

afaik ctrl-shift-u is a Gnome-specific unicode entry mode. It works everywhere in Gnome, but not outside of Gnome.

[@_baco]

Actually, it's GTK+ specific. It doesn't work, even inside GNOME, if the application is not GTK-based. For instance Alacritty or XTerm

[@essamgouda1609]

As always brilliant content !

[@davehouser1]

Wow, very cool stuff :) didn't know about reverse-search. I always just grep on my history command, then use `!` for the entry I want to run. If I want to edit it I use `!:p`. Re: fc, I usually run `set -o vi` so I can run vi motions from the terminal, from there I can use `v` to edit commands. Nice post!

[@TheMaxCacao]

I use mcfly as a ctrl-r extension. It’s recommendation algo and easy viewing of previous commands is really usefull

[@jamesmunroe6558]

You're a total boss, dude! Your videos are gold!

[@lukajeliciclux3074]

Great video. Can I fork the wiki for the references?

[@souravdhar47]

how to get out of the editor after the fc command?

[@anthonywritescode]

just quit the editor like normal -- (so if it's vim, you'd `:wq`, if it's babi you'd `^X`)

[@Granteparton]

Cool keyboard, what is it?

[@anthonywritescode]

it's the kinesis freestyle pro! here's my thoughts on it: kzbin.info/www/bejne/eovKdIiNm553kK8

[@tcarreira]

I find it easier to memorize the ESC+ instead. Eg: ESC+. will write the paste the last argument. ESC+backspace will delete the last word. etc...

[@anthonywritescode]

I assume you map capslock to control, otherwise those are quite the stretch!

[@CollinJS]

Alt+. will also produce the same effect, though the escape method allows you to fully press and release escape before tapping dot, etc.

[@anthonywritescode]

you can also do control-[ + . as well

[@voytechj]

Reverse search (Crtl-r) is pretty universal. It works in python REPL, bash, zsh, PowerShell and many more. You can import prompt_toolkit and replace "input" with "prompt" and have your own reverse search. Its very easy: from prompt_toolkit import PromptSession session = PromptSession() while True: answer = session.prompt("Give me some input: ") print(f"You said: {answer}") if answer == "exit": break

[@anthonywritescode]

^R is a readline feature -- all those things use readline when available (python on windows for example does not support it, and very frequently pyenv-compiled python doesn't either)

[@voytechj]

@@anthonywritescode Just checked both cmd and new Microsoft Terminal on windows and reverse search works in python with no problem.

[@anthonywritescode]

you must've installed readline -- the official distributions do not come with functioning readline

[@voytechj]

@@anthonywritescode You are right, I installed pyreadline. Forgot about this module

[@leyuskc]

ctrl+. for emoji chart or tabel , unlike ctrl+shift+u youdont have to remember the unicode value 😉

[@anthonywritescode]

doesn't work on linux or windows -- must be a mac specific thing

[@TheMicho1234]

Hi anthony, FYI, you typed your password while recording your keyboard ...

[@dddsa5951]

I think he uses a virtual machine to make videos so it doesn't actually matter : }

[@anthonywritescode]

yep -- my password is literally "bad password"

[@sillybuttons925]

`y` does work on gitlab. Unfortunately know this from experience.

[@anthonywritescode]

you poor soul, gl with your choo choos

[@sillybuttons925]

@@anthonywritescode "run train is against our coc"

[@tandavme]

you can use ctrl - D instead of ~. to close ssh connection. Or get out of the attached docker container terminal

[@dddsa5951]

Ctrl+D doesn't work if the connection is stuck. For example if your wifi got disconnected while you were ssh'd into a server, neither ctrl+C or ctrl+D will do anything, you will have to close the terminal. But ~. worked to my surprise and it's a nice trick to know

[@anthonywritescode]

nope! ~. is specifically needed when the session is stuck and you want to forcibly detach

[@guitarfumar]

Timestamps would be very much appreciated. 🤙

[@anthonywritescode]

if you compile them I'll put them into the description!

[@con-f-use]

Ctrl + x then Ctrl + e opens the current terminal line in an editor, so similar to fc, but is better, because it works across multiple shells and together with history navigation is slightly more powerful.

[@anthonywritescode]

you didn't watch the video

[@con-f-use]

​@@anthonywritescode I did, but missed the mention of it also missed the Alt + . (dot) the first time. Just spaced out. At least the info that it works in shells other than bash was not in the vid ;D

[@JohnSmith-xf6nb]

@@con-f-use Doesn't work in zsh apparently

[@a_maxed_out_handle_of_30_chars]

Title should have been useful bash tricks I wish I knew

[@anthonywritescode]

not all of them are bash

[@cerioscha]

^r is a great one thanks ! There was me doing history | grep git all this time