Usage: 'xyz [-a] [-b] [-c pqr] -u user file [file ...]
Type ? [opt] for extended help; return to exit; or enter your command line now
xyz>-a?
Option -a: output all information
xyz>-a -c?
Option -c pqr: set the c... to the (required) value 'pqr'
xyz>-a -c pqr -u?
Option -u user: (required) specify the user id for ...
xyz>-a -c pqr -u fred ?
You must specify one (or more) filenames (wildcards allowed) to be processed.
xyz>-a -c pqr -u fred this*.txt that*.txt theOther.txt
(processing)...