wookiee@wookiee:~$ pidgin --help
Pidgin 2.5.2
Usage: pidgin [OPTION]...
-c, --config=DIR use DIR for config files
-d, --debug print debugging messages to stdout
-h, --help display this help and exit
-m, --multiple do not ensure single instance
-n, --nologin don't automatically login
-l, --login[=NAME] enable specified account(s) (optional argument NAME
specifies account(s) to use, separated by commas.
Without this only the first account will be enabled).
--display=DISPLAY X display to use
-v, --version display the current version and exit