77 lines
1.6 KiB
Bash
Executable File
77 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# Jack-Benny Persson
|
|
# LX13
|
|
# Excercise 3, lab 7 (Code a script to help admins create new users)
|
|
|
|
# Define some variables
|
|
|
|
# Binaries
|
|
Chpasswd="/usr/sbin/chpasswd"
|
|
Useradd="/usr/sbin/useradd"
|
|
Dialog="/usr/bin/dialog"
|
|
Grep="/bin/grep"
|
|
Cat="/bin/cat"
|
|
Rm="/bin/rm"
|
|
Temp=`mktemp -t createuser.XXXX` # This is safer than just creating the file
|
|
# manualy, since it will be chmod 600 now
|
|
|
|
# Functions
|
|
ask()
|
|
{
|
|
$Dialog --backtitle "Create new user" --inputbox "$1" 10 60\
|
|
2> $Temp
|
|
if [ $? -eq 255 ]; then
|
|
echo "Aborting, user hit ESC"
|
|
exit 1
|
|
fi
|
|
Input=`$Cat $Temp`
|
|
|
|
}
|
|
|
|
|
|
# Sanity checks
|
|
if [ $EUID -ne 0 ]; then
|
|
echo "You need to run this script as root"
|
|
exit 1
|
|
fi
|
|
|
|
for bin in $Chpasswd $Useradd $Dialog $Grep $Cat $Rm; do
|
|
if [ ! -x $bin ]; then
|
|
echo "Can't execute $bin"
|
|
exit 1
|
|
fi
|
|
done
|
|
|
|
# Main
|
|
ask "Enter username of the new user"
|
|
Username=$Input
|
|
|
|
# Get a list of all avaliable shells on the system
|
|
Shell=`$Cat /etc/shells | $Grep /bin`
|
|
ShellList=`printf "$Shell" | sed 's/ / shell /g' | sed 's/$/ shell/'`
|
|
|
|
HowMany=`echo $Shell | wc -w` # How many shells are avaliable?
|
|
|
|
$Dialog --backtitle "Create new user"\
|
|
--menu "Choose a shell for your new user" 14 60 $HowMany $ShellList\
|
|
2> $Temp
|
|
if [ $? -eq 255 ]; then
|
|
echo "Aborting, user hit ESC"
|
|
exit 1
|
|
fi
|
|
Input=`$Cat $Temp`
|
|
UserShell=$Input
|
|
|
|
ask "Enter a password for the new user"
|
|
Password=$Input
|
|
|
|
# Remove the temp file (it contains the password of latest created user)
|
|
$Rm $Temp
|
|
|
|
# Create the user and set the password
|
|
$Useradd -m -s $UserShell $Username
|
|
echo "${Username}:${Password}" | $Chpasswd
|
|
|
|
exit 0
|