Making Linux commands shorter
Here are a few ways to shorten your Linux/UNIX/*BSD commands. Keep in mind that some short commands are less readable by others.
| Long version | Short version | Characters won | Application |
| cd $HOME | cd | 6 | Shell |
| cat file | grep -v some | grep -v thing | grep -vE 'some|thing' file | 13 | Shell |
| sort file | uniq | sort -u file | 4 | Shell |
| :wq! | :x | 2 | vi |
| boot bsd | bsd | 5 | OpenBSD bootloader |
| grep -v '^#' file | grep -v '^$' | grep -vE '^#|^$' file | 11 | Shell |