Difference between revisions of "Groupadd"

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[[Category:Linux shell commands]]
{{to htyp}}
[[Techniques]]: [[Linux]]: [[groupadd]]
==Text==
===Name===
:'''groupadd''' - Create a new group
===Synopsis===
:'''standard:''' groupadd [-g <u>gid</u> [-o]] <u>group</u>
:'''Red Hat:''' groupadd [-g <u>gid</u> [-o]] [-r] [-f] <u>group</u>
 
===Description===
:The groupadd command creates a new group account using the values specified on the command line and the default values from the system.  The new group will be entered into the system files as needed.  The options which apply to the groupadd command are
 
{| margin=3
|-
| width=10% valign=top | '''-g <u>gid</u>'''
| The  numerical value of the group's ID.  This value must be unique, unless the -o option is used. The value  must be non-negative.  The default is to use the smallest ID value greater than 500 and  greater than  every  other group.  Values between 0 and 499 are typically reserved for system accounts.
|-
| colspan=2 bgcolor=#eeeeee | Red Hat Linux only:
|-
| width=10% valign=top | '''-r'''
| This  flag  instructs  groupadd  to  add  a  system account.  The  first  available gid lower than 499 will be automatically selected unless the -g option is also given on the command line. This is an option added by Red Hat.
|-
| width=10% valign=top | '''-f'''
| This is the force flag. This will cause groupadd to exit with an error when the group about to be added already  exists on the system. If that is the case, the group won't be altered (or added again). This option also modifies the way -g option  works. When  you  request  a gid that it is not unique and you don't specify the -o option too, the group creation  will  fall  back  to  the  standard behavior (adding a group as if neither -g or -o options were specified).
 
This is an option added by Red Hat.
 
|}
 
===Files===
*'''/etc/group''' - group account information
*'''/etc/gshadow''' - secure group account information
===See Also===
[[chfn]](1),  [[chsh]](1),  [[passwd]](1),  [[groupdel]](8),  [[groupmod]](8),  [[useradd]](8), [[userdel]](8), [[usermod]](8)
===Author===
:Julianne Frances Haugh (jockgrrl@ix.netcom.com)
==Questions==
*What is a system account? Apparently it's a Red Hat concept, so it may not be important for general use.
 
==Edit Log==
*2005-06-09 Transcribed from Red Hat 9 Linux manpages and KUbuntu (hoary) manpages.

Latest revision as of 18:28, 14 October 2005

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