Create new user account and password in shell script
I am trying to create a shell script that will:
check if a specific user already exists
if not, create a specific group and create the user in that group
assign a password to that user, where the password is passed in as a parameter to the script
The problem that I need help with is 3 on Solaris and AIX.
I can do 1 (using the id command) and 2 (using mkgroup or groupadd and useradd commands), but setting the password is where I am having problems. I have got it to work on Linux by redirecting input to the passwd command but I can not find how to get the same functionality to work on AIX and Solaris. This is what I have so far:
I've searched the forums and found some similar postings but nothing seems to answer exactly what I'm looking for.
Some additional information that might preempt some questions:
the script will only be run by the root user
there is not an issue with storing the password unencrypted in a flat file because it will be entered by the user as a parameter at run-time
the script has to be executable on Linux X86, Linux s390x, Solaris 10, and AIX 6
the script can not use any command, utility, or any other software that is not installed on the OS by default, so an answer along the lines of "download and install this..." is no good to me.
I can not use an answer that involves using perl
I can not use an answer that involves using the expect command
If it can't be done, because of something like OS security restrictions and limitations, then please let me know and I'll stop trying to script it!
Thanks in advance for any help or pointers that anyone can provide.
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Discussion started by: amit1986
2 Replies
LEARN ABOUT DEBIAN
lusermod
lusermod(8) System Manager's Manual lusermod(8)NAME
lusermod - Modify an user
SYNOPSIS
lusermod [OPTION]... user
DESCRIPTION
Modifies the user with name user.
OPTIONS -c, --gecos=gecos
Set user's GECOS field to gecos. The GECOS field is traditionally used to store user's real name and other information.
-d, --directory=directory
Set user's home directory to directory.
-g, --gid=gid
Change user's primary group ID to gid. If group with ID gid does not exist, a warning is printed, but the operation is performed
anyway.
-i, --interactive
Ask all questions when connecting to the user database, even if default answers are set up in libuser configuration.
-L, --lock
Lock user's account. This prevents logging in using user's password.
-l, --login=name
Rename user to name.
-m, --movedirectory
After changing user's home directory (using the -d option), move the old home directory to the new location.
-P, --plainpassword=password
Set user's password to password. Note that the password can be viewed while running lusermod using tools such as ps(1).
-p, --password=encrypted
Set user's password to the password represented by the hash encrypted. Note that the hash can be viewed while running lusermod
using tools such as ps(1).
-s, --shell=shell
Set user's login shell to shell.
-U, --unlock
Unlock user's account.
-u, --uid=uid
Change user's user ID to uid.
EXIT STATUS
The exit status is 0 on success, nonzero on error.
libuser Feb 27 2008 lusermod(8)