#!/bin/bash
# adapted from finger.sh by Lee Sailer
# UNIX/WORLD, III:11, p. 67, Fig. 2

if [ $# -eq 0 ]
	then
		echo "Usage: whos id..." 1>&2
		exit 1
fi
for i
do
	gawk -F: '{print $1, $5}' /etc/passwd |
	grep -i "$i"
done