- grep
- find
- vim
- tail
- head
- git
- docker
- ps
- make
- makepkg
- ls
- rsync
- ssh
- go
- gcc
- php
- python
- yarn
- npm
- composer
- mysql
- mongo
- chown
- chgrp
- cat
- java
- wc
- subl3
- echo
- export
- sh
- ffmpeg
- curl
- pipe .... cat <file> | grep <string>
- & (run in background)
- kill
those are quite common