2vcard -v (return code: 0)
2vcard Version 0.6
2vcard -h (return code: 0)
2vcard: convert an addressbook to vcard format
Usage: 2vcard [OPTION...]
Options:
-F show supported formats
-f FORMAT convert from FROMAT [ default: mutt ]
-h print this message and exit
-i FILE read input from FILE
-o FILE write output to FILE
-v print version number and exit