oreilly.comSafari Books Online.Conferences.


Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

Buy it now, or read it online on Safari Bookshelf.


groupmod [options] group

System administration command. Modify group information for group.


-g gid

Change the numerical value of the group ID. Any files that have the old gid must be changed manually. The new gid must be unique, unless the -o option is used.

-n name

Change the group name to name.


Override. Accept a nonunique gid.

Linux Resources
  • Linux Online
  • The Linux FAQ
  • Linux Kernel Archives
  • Kernel Traffic

  • Sponsored by: