#!/bin/bash
#
TARGET=$1
PHRASE=$2
hname=`hostname -s`
LOGINS=`w | grep "^$TARGET " | awk '{print $2}'`
#
change_title() {
  echo -ne "\033]0;$1\007"
}

for l in $LOGINS ; do
  pid=`ps h t$l -o pid|head -1`
  cwd=`lsof -n -p $pid|grep "  cwd  "|awk '{print $9}'|sed -e "s/\/home\/$TARGET/\~/"`
  echo pid=$pid cwd=$cwd
  change_title "$PHRASE" > /dev/$l
  sleep 1
  change_title "$TARGET@$hname:$cwd"  > /dev/$l
done