ls
The ls command is short for 'list'. It is used to display the contents of a directory.
Example
ls projects
This will list all the visible files and directories in the projects directory
a option (-a)
This option will list all files and directories even if they are hidden files.
Example
ls -a projects
l option (-l)
This will display extended details about the files and directories including permissions, owner, size and modified time.
Example
ls -l projects
Options
Multiple options can be added together to combine their functions
Example
ls -al projects