bbox --version (return code: 0)
bbox: bbox Version $Rev: 139 $
bbox --help (return code: 0)
bbox: Version $Rev: 139 $
usage: bbox [-l] [-r resolution] [-V] [filename]
-l: loose bounding box (bbox is expanded by 1 point)
-r: resolution of picture in dpi
-V: version information
-h: this help
bbox reads a rawppm or rawpbm file and prints out the
bounding box of the image. If no filename is specified
input is read from standard input.