#!/bin/bash
if [ ! `ps auxwww |grep -w "joe /etc/dhcpd.conf" |grep -vw "grep" >/dev/null` -o ! `ps auxwww |grep -w "vi /etc/dhcpd.conf" |grep -vw "grep" >/dev/null` ]
                then
                        varstat="OK"
                     echo "Nobody is editing the file!"
                else
                        echo "Somebody is editing dhcpd.conf!"
                        varstat="NOT"
                fi