p_adduser

#!/bin/bash

## A utility script for adding a new user.
## Non-interactive.

set -e

USAGE="$(basename "$0") [-h] [-u UID] [-g GID] NAME LOGIN

This script uses 'adduser' to create a new user with their new
home directory. 

      NAME               The name of the user being created.
      LOGIN              The login for the user being created.
      -u UID             A specific user ID value for the new user.
      -g GID             A specific group ID for the new user's
                             new group.
      -h                 Disply this help message.

"

# First set up the default values.
new_uid=""                                         # New user ID
new_gid=""                                         # New group ID

# Parse any options
while getopts ":hu:g:" opt; do
	case $opt in
		h)
			echo "$USAGE"
			exit
			;;
		u)
			new_uid="$OPTARG"
			;;
		g)
			new_gid="$OPTARG"
			;;
		\?)
			echo "Invalid option: -$OPTARG" >&2
			;;
		:)
			echo "Option -$OPTARG requires an argument." >&2
			;;
	esac
done

# Shift to the positional arguments
shift $(( OPTIND - 1 ))

if [ "$#" -lt 2 ]; then
	echo "Both a user name and a user login must be specified." >&2
	exit 1
fi

# Get the positional arguments
new_name=$1
new_login=$2

# Issue the adduser command.
if [ -z "$new_uid" -a -z "$new_gid" ]; then
	adduser --disabled-password --gecos "$new_name,,," $new_login
elif [ -z "$new_gid" ]; then
	adduser --uid $new_uid --disabled-password --gecos "$new_name,,," $new_login
elif [ -z "$new_uid" ]; then
	addgroup --gid $new_gid $new_login
	adduser --gid $new_gid --disabled-password --gecos "$new_name,,," $new_login
else 
	addgroup --gid $new_gid $new_login
	adduser --uid $new_uid --gid $new_gid --disabled-password --gecos "$new_name,,," $new_login
fi


exit