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Full Discussion: Script to add new users to a group on multiple servers using SSH
Top Forums Shell Programming and Scripting Script to add new users to a group on multiple servers using SSH Post 302880884 by Satya1983 on Tuesday 24th of December 2013 07:54:05 AM
Old 12-24-2013
Script to add new users to a group on multiple servers using SSH
Hi Experts,

I am new to scripting. We have around 400 Linux servers in our environment. I want to add a new user to a perticular group on all the servers using SSH.

Requirements:

1) Need to take the server names from a text file.

2) Login into each server and check whether perticular group is available or not. If yes, check whether the user is already added to that group.

3) If the user is not existing in that group, add the user to it.

Can somebody help me with a simple script to do this ?

Thank you in advance.

Regards,
Satya.
 

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LEARN ABOUT SUSE

newgrp

newgrp(1)						      General Commands Manual							 newgrp(1)

NAME

       newgrp -  change effective group ID sg - execute command with different group ID

SYNOPSIS

       newgrp [-l] [group]
       sg group -c command

DESCRIPTION

       The  newgrp  command changes the user's real and effetive group ID by replacing the current shell with a new shell. A new shell is launched
       even if an error occours.

       A password is requested if the group has a password and the user is not listed in the group file as being a member of that group. The pass-
       word can be changed with the gpasswd(1) command.

       If the new effective group ID is not in the supplementary group list, newgrp will add the new group ID to the supplementary list, too.

       With  no  operands  and options, newgrp changes the user's group IDs (real and effective) back to the group specified in password and group
       file.

       The sg command works like the newgrp command, except that it executes the given command with /bin/sh and upon exit the group ID of the cur-
       rent shell is not changed.

OPTIONS

       -l, --login
	      reinitialize the environment as if the user logged in.

       --help Print a help list.

       -u, --usage
	      Print a short usage message.

       -v, --version
	      Print program version.

SEE ALSO

       gpasswd(1), group(5), passwd(1), passwd(5), su(1)

AUTHOR

       Thorsten Kukuk <kukuk@suse.de>

pwdutils							    April 2004								 newgrp(1)
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