pidstat -VERSION (return code: 0)
sysstat version 11.2.0
(C) Sebastien Godard (sysstat <at> orange.fr)
pidstat --help (return code: 1)
Usage: pidstat [ options ] [ <interval> [ <count> ] ]
Options are:
[ -d ] [ -h ] [ -I ] [ -l ] [ -R ] [ -r ] [ -s ] [ -t ] [ -U [ <username> ] ]
[ -u ] [ -V ] [ -v ] [ -w ] [ -C <command> ] [ -G <process_name> ]
[ -p { <pid> [,...] | SELF | ALL } ] [ -T { TASK | CHILD | ALL } ]