Shell Programming and Scripting

All,

I have a list of over 400 users that need certain directories created. These will be created in /users/$username on a system and I need a directory called chess under these directories that I create.

Instead of me manually adding each one (mkdir /users/user1, mkdir /users/user1/chess) then changing the ownership (chown -R user1:group) I would love to have a script ask me for a username and have it to the work.

I'm not too familiar with scripts asking for input so any help would be greatly appreciated.

Thanks.

#!/bin/bash
if [ $# -eq "0" ]
then
# this prints the usage if no arguments are received.
echo "usage: `basename $0` <user>"
exit
fi

# check if username provided to script is a valid user
if [ `grep -i ^$1: /etc/passwd` ]
then
mkdir /users/$1
mkdir /users/$1/chess
chown -R $1:users /users/$1
else
echo user $1 not found
fi