awk | <https://github.com/learnbyexample/Command-line-text-processing/blob/master/gnu_awk.md>
bash/sh | ~/.config/bash.d/README.md
i3 | ~/.config/i3/config
kitty | ~/.config/kitty/kitty.conf
lf | ~/.config/lf/lfrc
mutt | ~/.mutt/muttrc.common
neovim | ~/.config/nvim/README.md
zsh | ~/.config/zsh/README.md
xxd | Hex dump
caffeinate -i <somecommand> | prevent system from sleeping whilst command is running
Ctrl-1/2/3 | switch desktop
Cmd-Shift-. | toggle hidden file display in Finder
Option-Delete | delete previous word
Ctrl-Backspace | delete previous word
Cmd-Opt-R | reader view
Vimium keys | <https://github.com/philc/vimium#keyboard-bindings>
a | zoom out to page
r | rotate
s | zoom to page width
/ | zoom out to show entire image
<up> | zoom in
<down> | zoom out
<, > | rotate
journalctl --since=yesterday | output from beginning of yesterday
journalctl --since=-1week | output from 1 week ago
journalctl CONTAINER_NAME="docker_container" | output from docker container
journalctl --user -u xyz.service | output from specific user service
getent hosts <hostname> | look up DNS name
pdfunite | combine PDFs on comand line
hardlink | combine duplicate files using hardlinks
eyeD3 --add-image "cover.jpg:FRONT_COVER" test.mp3 | add image to MP3
* MacOS - <https://git.herrbischoff.com/awesome-macos-command-line/about/>