Sample shell script to add a user:
Today i learn how to add a user to linux server with a password.
Code:
#!/bin/bash
# Script to add a user to Linux system
if [ $(id -u) -eq 0 ]; then
read -p "Enter username : " username
read -s -p "Enter password : " password
egrep "^$username" /etc/passwd >/dev/null
if [ $? -eq 0 ]; then
echo "$username exists!"
exit 1
else
pass=$(perl -e 'print crypt($ARGV[0], "password")' $password)
useradd -m -p $pass $username
[ $? -eq 0 ] && echo "User has been added to system!" || echo "Failed to add a user!"
fi
else
echo "Only root may add a user to the system"
exit 2
fi
Moderator's Comments:
Please always use code tags for wrapping your samples.
Hi all,
I am trying to eject the cdrom from a livecd after certain stage...
Now assuming that it is possible to eject,please consider my issue!!!
The OS boots into a regular user by default...so i am unable to use the eject command to push out the drive...
However if i try pfexec eject it... (3 Replies)
Hi everybody,
Does somebody has a sample of script that control a daemon?
for example use loop until the daemon is on and if is not on
do something else?
Thanks
Pier (0 Replies)
Hi All
I have written one shell script for GPRS route add is given below named GPRSRouteSet.sh
URL="www.google.com"
VBURL="10.5.2.211"
echo "Setting route for $URL for GPRS"
URL_Address=`nslookup $URL|grep Address:|grep -v "#"|awk -F " " '{print $2}'|head -1`
echo "Executing ... (3 Replies)
Hi Every body,
I would need a shell script program to login as different user and perform some copy commands in the script.
example: Supppose ora_toms is the active user
ora_toms should be able to run a script where user: ftptomsp pass: XXX should login through and run the commands
... (9 Replies)
Hello, I'm new to this forum, and I apologize in advance if I did something wrong here.
I am pretty stumped here as I am still getting the error message, "./comc1.sh: test: argument expected." after executing the script itself.
Here's the script file I modified:
I tried executing line 4... (1 Reply)
hi all, I need some help in regards of how to process just a sample from a large .txt file
I have a large file from many new lines (say above 200.000 new lines), I need a script that process just a sample of it, say 10.000 bur a random sample (taking rows from top top to the the bottom)
... (4 Replies)
Below is the code. Its the 1st line of a file.
How can I remove the bracket and display like below.
123 web int 1 09:30:45 2013
I dont want to use AWK or SED or PERL. I need to use only the bash shell scripting commands to do it. (3 Replies)
Hello members,
Can anyone help me how to draft a shell scripting resume. This might sound off the track from the forum's technical discussion but am struggling to find it on google how to do it exactly. Hence asking for help over here since there are many good number of professionals here.
... (7 Replies)
Hi,
I need to switch from local user to root user in a shell script.
I need to make it automated so that it doesn't prompt for the root password.
I heard the su command will do that work but it prompt for the password.
and also can someone tell me whether su command spawns a new shell or... (1 Reply)
Discussion started by: Little
1 Replies
LEARN ABOUT ULTRIX
shexp
shexp(1) General Commands Manual shexp(1)Name
shexp - display password expiration information for a user
Syntax
shexp [-q] [username]
Description
The command is used to display a user's password expiration information. The specified username, or logname if no username is supplied, is
converted to a UID by searching through the passwd file. The UID is then used to look up the user's entry in the Auth Data Base. The
password expiration information is then printed out in format.
% shexp
Expires Tue Dec 6 10:49:18 EST 1988
If the password has already expired the word Expires will be replaced with the word Expired. If password expiration is disabled for the
particular user in question the output of will be Never expires.
Options-q Instead of displaying the expiration date and time in format, outputs it as three decimal numbers: the minimum password lifetime, the
maximum password lifetime, and the password modification time. All three numbers are displayed as they are found in the database.
Restrictions
Only the super-user may obtain information about users with UIDs other than the real UID of the invoking process.
Diagnostics
User not found in passwd data base.
There is no entry in for the specified username.
Cannot stat auth file.
The database is missing (security features may not be enabled).
Insufficient privilege.
An insufficiently privileged user is asking for information about a username with a UID different then their current real-UID.
An exit value of 0 indicates a successful operation, any other exit status indicates an error.
FilesSee Alsopasswd(1), getauthuid(3), auth(5)
Security Guide for Users
shexp(1)
01-09-2019
