list directory contents

-l     use a long listing format

-A, --almost-all
       do not list implied . and ..

-G, --no-group
       in a long listing, don't print group names

-h, --human-readable
       with -l, print sizes in human readable format (e.g., 1K 234M 2G)

-1     list one file per line

-v     natural sort of (version) numbers within text

-X     sort alphabetically by entry extension

--group-directories-first
       group directories before files.

List information about the FILEs (the current directory by default).  Sort entries alphabetically if none
of -cftuvSUX nor --sort is specified.