Linux Shells by Example

ls, dir, vdir—lists contents of directory

ls [-abcdfgiklmnpqrstuxABCFGLNQRSUX1] [-cols] [-T cols] [-I pattern]
   [--all] [--escape] [--directory] [--inode] [--kilobytes]
   [--numeric-uid-gid] [--no-group] [--hide-control-chars] [--reverse]
   [--size] [--width=cols] [--tab-size=cols] [--almost-all]
   [--ignore-backups] [--classify] [--file-type] [--full-time]
   [--ignore=pattern] [--dereference] [--literal] [--quote-name]
   [--recursive] [--sort={none,time,size,extension}]
   [--format={long,verbose,commas,across,vertical,single-column}]
   [--time={atime,access,use,ctime,status}][--help] [--vision]
   [--color[={yes,no,tty}]] [--colour[={yes,no,tty}]][name…]

For each directory argument, ls lists the contents of the directory; for each file argument, ls repeats ...