#!/bin/bash
#

# user info version 3
# - argument checking and usage
# - return code
# - substitution for logs
LOGFILE="/tmp/userinfo.log"

echo "$(date "+%d/%m/%Y-%H:%M:%S") : $USER ($UID); $0 ($EUID) $@" >>  $LOGFILE

echo "DEBUG : usage de userinfo" 1>&2

if test "$1" == ""; then
	echo "usage : $0 <username>"
	exit 1
fi

cat /etc/passwd | grep $1
exit $?