Exclude the output from ssh and only log the error if found

typeset -f | sshpass -e ssh -o StrictHostKeyChecking=no user@${IPADDRESS} " $(cat); IFERROR=$(checkscript); echo "$IFERROR"" > ${SSHTEMPFILE} 2>&1 This line...I can't exclude the "user authorized" message from the ssh...IFERROR returns the values I need to track, but also, the "!!! AUTHORIZED USE ONLY !!!" horrible message from the ssh... Already tried something like this, but its not working: typeset -f | sshpass -e ssh -o StrictHostKeyChecking=no user@${IPADDRESS} " $(cat); IFERROR=$(checkscript); echo "$IFERROR"" | grep -v "AUTHORIZED" > ${SSHTEMPFILE} 2>&1