slNot a command but bang expansions. For example
!?is the args of last command useful for stuff likemkdir foo ; cd !?https://www.redhat.com/sysadmin/bash-bang-commands learn these. you suck at using your computer if you don’t know them.
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CTR + u will delete the whole command. I use that a lot so I don’t have to backspace. It’s saved me a ton of time
Related: Alt +
., to cycle through arguments used in previous commands
sudo !!to rerun last command as sudo.historycan be paired with!5to run the fifth command listed in history.Fifth as in fifth most recent command or fifth oldest?
I believe it’s the fifth oldest - I think
!-5will get you the fifth impost recent, but I was shown that and haven’t put it into practice.The most common usecase I do is something like
history | grep dockerto find docker commands I’ve ran, then use!followed by the number associated with the command I want to run in history.
atools, which includesals,aunpack,apack. so you can stop caring about the kind of archive and just unpack it. it also saves you from shit archives that have multiple files/dirs in their root.perl -e/perl -lne/ …unitsbc- a calculator that’s actually goodpass- the only non-shit password store tool i’ve found so far. no gui, uses gpg and git to do the encrypting and storage/sharingalias lr='ls -lrth'- so you can easily find the newest file, cos that’s frequently what you wantunip- my script to look up things in the unicode dbfind -type f -exec xzgrep 're' {} +- because xzgrep cant do -r
oh yeah, and for the shell readline, alt-b, alt-f, ctrl-w, ctrl-u, ctrl-k, ctrl-a, ctrl-e
pv (Pipe Viewer) is a command line tool to view verbose information about data streamed/piped through it. The data can be of any source like files, block devices, network streams etc. It shows the amount of data passed through, time running, progress bar, percentage and the estimated completion time.
ls
Not a specific command, but I learned recently you can just dump any executable script into ~/bin and run it from the terminal.
I suffer greatly from analysis paralysis, I have a very hard time making decisions especially if there’s many options. So I wrote a script that reads a text file full of tasks and just picks one. It took me like ten minutes to write and now I spend far more time doing stuff instead of doing nothing and feeling badly that I can’t decide what to do.
I think the standard is ~/.local/bin, for the people that like standards.
This is because
$HOME/binis in your$PATHenvironment variable. You can add more paths that you’d like to execute scripts from, like a personal git repo that contains your scripts.
jqsudo pacman -Syu
I just aliased “sudo pacman -Syu && yay -Syu --aur” to “update” cause I got tired of writing it every day.
You can just run
yaywith no arguments and it does exactly what your update script does.Huh, the more you know.
Getting cheatsheets via
curl cheat.sh/INSERT_COMMAND_HERENo install necessary, Also, you can quickly search within the cheatsheets via
~. For example if you copycurl cheat.sh/ls~findwill show all the examples oflsthat usefind. If you remove~find, then it shows all examples ofls.I have a function in my bash alias for it (also piped into
morefor readability):function cht() { curl cheat.sh/"$1"?style=igor|more }Since nobody has said yet, I use screen pretty heavily. Want to run a long running task, starting it from your phone? Run screen to create a detachable session then the long running command. You can then safely close out of your terminal or detach with ctrl a, d and continue in your terminal doing something else. screen -r to get back to it.
Don’t use
screen, but I do usetmuxpretty heavily.How does screen / tmux work when detached from a session, how does it keep the session alive (both when running locally, and while ssh:ing to a server)? Is there a daemon involved?
I recently switched to tmux and boy, it’s way better. I basically use only tmux now anymore. Creating panes to have two processes in one glance, multiple windows, awesome. Plus all the benefits of screen.
Try zellij. Not as popular as tmux, but very intuitive to use.
Maybe someone reading wants to now about
prefix+s. This doubles your excitement.
In a similar vein,
nohuplets you send tasks to the background and seems to be everywhere.I Always forget to run screen first, so I just rely heavily on dtach
Simply change your terminal command to execute the terminal multiplexer of your choice.
man terminal_of_choice, look for (start) command.
I would know this as tmux, is there a difference?
no, tmux is a newer screen. some of us havent switched cos we’re too lazy i guess? i think the common wisdom is that it’s better. i havent tried cos i already know enough of screen and it’s fine for me
Or you can learn both and spend the rest of your life trying screen commands in tmux and vice versa.
mmmmmm <3
gnu screen is just a different program than tmux. they do the same thing though
Also, screen can connect to an UART device or serial or anything that offers up a TTY
less,watchclear. Constantly, and for no reason.I like it so much I alised it to
c.Ctrl-L
Oh. I know. But you don’t understand - I’m compelled to type it out. I must.
I used to, but the terminal clear is better, so I don’t.
CMD/CTRL-K for me.
Someone who doesn’t know the benefits of dedicated, unlimited scrollback buffers. This command is useful but has a bad effect (when unintentionally).
