According to the “Man Pages”:
gm (1) - GraphicsMagick command-line utilities to create, edit, or convert images [username@localhost ~]$ gm help Version: GraphicsMagick 1.1.7 2005-10-12 Q8 http://www.GraphicsMagick.org/ Copyright: Copyright (C) 2002-2005 GraphicsMagick Group. Additional copyrights and licenses apply to this software, see http://www.GraphicsMagick.org/www/Copyright.html Usage: gm help command [options ...] Where options include: animate - animate a sequence of images composite - composite images together conjure - execute a Magick Scripting Language (MSL) XML script convert - convert an image or sequence of images display - display an image on a workstation running X help - obtain usage message for named command identify - describe an image or image sequence import - capture an application or X server screen mogrify - transform an image or sequence of images montage - create a composite image (in a grid) from separate images version - obtain release version
so there you have it for a brief and to the point cheat sheet for Graphics Magick! Enjoy…