#!/bin/bash

unqarg=` echo $1 | sed -e 's/"//g'`
#echo $unqarg

cat /var/lib/asterisk/disa/list-usergroup1|grep -sw $unqarg >& /dev/null    #looks up if the number exists in list-usergroup1
ERG=$?									#is "0" if number exists, "1" if it doesn't exist
#echo var: $ERG
echo "SET VARIABLE ERG $ERG"

checkresults() {
        while read line
        do
        case ${line:0:4} in
        "200 " ) echo $line >&2
                 return;;
        "510 " ) echo $line >&2
                 return;;
        "520 " ) echo $line >&2
                 return;;
        *      ) echo $line >&2;;       #keep on reading those Invlid command
                                        #command syntax until "520 End ..."
        esac
        done
}

checkresults