control+R

in bash, it lets you quickly search for previously executed commands.

its very useful and makes things much quicker, i recommend you give it a try.

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

• atools, which includes als, 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 / ...
• units
• bc - a calculator that's actually good
• pass - the only non-shit password store tool i've found so far. no gui, uses gpg and git to do the encrypting and storage/sharing
• alias lr='ls -lrth' - so you can easily find the newest file, cos that's frequently what you want
• unip - my script to look up things in the unicode db
• find -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

sudo !! to rerun last command as sudo.

history can be paired with !5 to run the fifth command listed in history.

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

jq

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.

Getting cheatsheets via curl cheat.sh/INSERT_COMMAND_HERE

No install necessary, Also, you can quickly search within the cheatsheets via ~. For example if you copy curl cheat.sh/ls~find will show all the examples of ls that use find. If you remove ~find, then it shows all examples of ls.

I have a function in my bash alias for it (also piped into more for readability):

function cht() { curl cheat.sh/"$1"?style=igor|more }

sudo pacman -Syu

less, watch

clear. Constantly, and for no reason.

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.

sudo udevadm monitor

Figuring out which usb device went on holiday.