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