#!/bin/bash
#

# user info version 4
# - for instruction
# - IFS
LOGFILE="/tmp/userinfo.log"
GETPASSWD="cat /etc/passwd"

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

YPPWDLINE="$($GETPASSWD | grep -e "^$1:")"
YPPWDLINE=$(echo $YPPWDLINE | tr "*" "_")
RETCODE=$?

COMMENTS=( "Login" "MD5 passwd" "Uid" "Gid" "Comment" "Homedir" "Shell" )
I=0
BKPIFS="$IFS"
IFS=":"
for TOKEN in $YPPWDLINE; do
	if test $I -lt ${#COMMENTS[@]}; then
		echo -n ${COMMENTS[$I]}" : "
	fi
	echo $TOKEN | tr "_" "*"
	I=$[ $I + 1 ]	
done
IFS="$BKPIFS"

exit $RETCODE