#!/bin/bash
# version: 0.3.6-r12

print_usage()
{
	echo "$(basename $0 .sh) adds users to /etc/passwd."
	echo " USAGE:    $(basename $0 .sh) -o OPTIONS USER_NAME .."
	echo
	echo " OPTIONS:  -o \"OPTS\"all options from /usr/sbin/useradd can be used."
	echo
	echo " Examples:"
	echo "    $(basename $0 .sh) -o \"-u 22 -g sshd -d /var/empty -s /bin/false\" sshd"
	echo
}

while getopts "o:-" opt ; do
	case "${opt}" in
		o)
			USER_OPTS="${OPTARG}"
			;;

		-) break
			;;

		*)
			print_usage
			exit 1
			;;
	esac
done
shift $(($OPTIND - 1))

#exit if $1 is zero
if [ -z "$1" ]
then
	print_usage
	exit 1
fi

USER_TO_ADD="$1"

#start nscd to cache passwd
$(which nscd) -i passwd
# get the info
my_user="$(getent passwd ${USER_TO_ADD})"

if [ -z "${my_user}" ]
then
	echo "     Adding user '${USER_TO_ADD}' ..."
	useradd ${USER_OPTS} "${USER_TO_ADD}"
else
	echo "     Modifing user '${USER_TO_ADD}' ..."
	usermod ${USER_OPTS} "${USER_TO_ADD}"
fi