Difference between revisions of "Redhat: Create user command line"

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== Command Line User and Group Creation ==
  
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There are a number of commands that can automate the process of creating a User and / or Group.  This will complete all of the needed steps for you.
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== Useradd ==
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The Useradd command creates a user accoding the the options and values given to it.  The modt basic usage create a user with the next available UID and an equivalent private group.
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<syntaxhighlight>
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Useradd <username>
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</syntaxhighlight>
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{| class="wikitable"
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|+ UserAdd Options
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| -u <UID>
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| overrides the default UID
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|-
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| -g <GID>
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| Overrides the Default GID
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|-
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| -c info
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| Comments on the user
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|-
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| -d <home _dir>
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| Overrides teh default Home directory
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|-
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| -e <date>
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| expriation date for the account
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|-
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| -f <num>
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| number of days after password expiration when account is disabled
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|-
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| -G <group>
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| groups the user is a member of
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|-
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| -s <shell>
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| Overrides the default shell
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|-
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|}
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== Groupadd ==
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The groupadd command creates a group with the name given.  The g flag can be used to set the GID, otherwise it will take the next available GID.
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<syntaxhighlight>
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groupadd -g 60001 project # create a group called project with GID 60001
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</syntaxhighlight>
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== Passwd ==
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The passwd is used to set a new password.  If a username is not provided it sets the password for the user who ran the command.
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Redhat will discourage the use of simplistic, dictionary and short passwords - BUT it will not prevent them.
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<syntaxhighlight>
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passwd <username>
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</syntaxhighlight>
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== Userdel ==
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To delete a user is simple:
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<syntaxhighlight>
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userdel <username>
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</syntaxhighlight>
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But this will not delete the home_directory or the files in it.  To do that add the -r flag.
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== Groupdel ==
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It simple....
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<syntaxhighlight>
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groupdel <group name>
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</syntaxhighlight>

Latest revision as of 14:37, 30 August 2013

Command Line User and Group Creation

There are a number of commands that can automate the process of creating a User and / or Group. This will complete all of the needed steps for you.

Useradd

The Useradd command creates a user accoding the the options and values given to it. The modt basic usage create a user with the next available UID and an equivalent private group. 

Useradd <username>
UserAdd Options
-u <UID> overrides the default UID
-g <GID> Overrides the Default GID
-c info Comments on the user
-d <home _dir> Overrides teh default Home directory
-e <date> expriation date for the account
-f <num> number of days after password expiration when account is disabled
-G <group> groups the user is a member of
-s <shell> Overrides the default shell


Groupadd

The groupadd command creates a group with the name given. The g flag can be used to set the GID, otherwise it will take the next available GID. 


groupadd -g 60001 project # create a group called project with GID 60001

Passwd

The passwd is used to set a new password. If a username is not provided it sets the password for the user who ran the command.

Redhat will discourage the use of simplistic, dictionary and short passwords - BUT it will not prevent them. 

passwd <username>

Userdel

To delete a user is simple: 

userdel <username>

But this will not delete the home_directory or the files in it. To do that add the -r flag.

Groupdel

It simple.... 

groupdel <group name>
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