gsf-office-thumbnailer -V (return code: 1)
Invalid usage; type "gsf-office-thumbnailer --help" for instructions. All the options must be used.
gsf-office-thumbnailer --help (return code: 0)
Usage:
gsf-office-thumbnailer [OPTION?] Options
Help Options:
-h, --help Show help options
Application Options:
-i, --input=filename Name of file for which to create a thumbnail
-o, --output=filename Name of the file to put the thumbnail
-s, --size=N Size of thumbnail in pixels; the thumbnail will be at most N*N pixels large