ft_ls imitates the ls command.

The ls command is used to list files. ``ls'' on its own lists all files in the current directory except for hidden files.

ls options: ls -a list all files including hidden file starting with '.' ls -l list with long format - show permissions. ls -la list long format including hidden files. ls -r list in reverse order. ls -R list recursively directory tree. ls -t sort by time & date.