$ which iostat
$ whereis iostat
$ sudo apt update && sudo apt upgrade
$ sudo apt install plocate
$ locate iostat
$ locate example.txt
$ locate [example] # Search partial matches
$ locate -i [Example] # Case-insensitive
$ locate -n 5 filename
$ locate --regex -i "(\.mp4|\.avi)"
$ locate [filename] | wc -l
$ locate -c [filename]
$sudo updatedb
$locate [example] | grep "$(date +%Y-%m-%d)"
$ sudo find / -name iostat
$ command -v ssh
$ type ssh
$ type sleep head
$ type -p pwd
$ type -a pwd
$ type -t grep
- alias (shell alias)
- function (shell function)
- builtin (shell builtin)
- file (disk file)
- keyword (shell reserved word)
Determine the exact path that these links point to
$ readlink --version
$ readlink --help
$ readlink -f $(which ssh)
$ readlink -e desk
$ readlink -m desk3
$ readlink -n desk4
$ readlink -q desk
$ readlink -s desk5
$ readlink -s desk5
$ readlink -z desk2