How many different instances of the \"ls\" command are installed on your linux machine, and what is/are the location(s) path i.e. what is the complete path for each? Solution ls is one of the basic command in Linux. This command lists or displays files or directories. ls command runs with different parameters or instances like ls -l means long listing format ls -a displays all files with hidden files ls -lh show size of files To find where a particular command is stored use whereis command e:g whereis ls outputs Output: ls: /bin/ls /usr/share/man/man1p/ls.1p.gz /usr/share/man/man1/ls.1.gz.