4.2.2. Getting help on using commands#
In most cases, you can see the complete list of options
a command supports using
Usage: ls [OPTION]... [FILE]... List information about the FILEs (the current directory by default). Sort entries alphabetically if none of -cftuvSUX nor --sort is specified. Mandatory arguments to long options are mandatory for short options too. -a, --all do not ignore entries starting with . ...
To keep this discussion short, the examples in this section, only includes some options supported by a command.