Pfthb

I've been using cronic to silence emails from cron jobs when the job is successful. I'm trying to customize it so when a response code is 0 and the error output matches a string of "mount: /VessRAID/RH: /dev/sde1 already mounted on /VessRAID/RH.", to not send an email. Below is the script, then the contents of the email then my attempt at trying to suppress the email which is not working. Any idea what I may be doing wrong?

#!/bin/bash
# Cronic v3 - cron job report wrapper
# Copyright 2007-2016 Chuck Houpt. No rights reserved, whatsoever.
# Public Domain CC0: http://creativecommons.org/publicdomain/zero/1.0/

set -eu

TMP=$(mktemp -d)
OUT=$TMP/cronic.out
ERR=$TMP/cronic.err
TRACE=$TMP/cronic.trace

set +e
"$@" >$OUT 2>$TRACE
RESULT=$?
set -e

PATTERN="^$PS4:0:1\+$PS4:1"
if grep -aq "$PATTERN" $TRACE
then
 ! grep -av "$PATTERN" $TRACE > $ERR
else
 ERR=$TRACE
fi

if [ $RESULT -ne 0 -o -s "$ERR" ]
 then
 echo "Cronic detected failure or error output for the command:"
 echo "$@"
 echo
 echo "RESULT CODE: $RESULT"
 echo
 echo "ERROR OUTPUT:"
 cat "$ERR"
 echo
 echo "STANDARD OUTPUT:"
 cat "$OUT"
 if [ $TRACE != $ERR ]
 then
 echo
 echo "TRACE-ERROR OUTPUT:"
 cat "$TRACE"
 fi
fi

rm -rf "$TMP"

Here is what the email notification looks like:

 Cronic detected failure or error output for the command:
 /usr/local/sbin/reg-backup-cronic.sh daily

 RESULT CODE: 0

 ERROR OUTPUT:
 mount: /VessRAID/RH: /dev/sde1 already mounted on /VessRAID/RH.

 STANDARD OUTPUT:
 /dev/sde1 on /VessRAID/RH type ext4 (rw,relatime)

Here is my attempt at a wrapper script:

#!/bin/bash
/usr/local/sbin/reg-backup.sh $1
CODE=$?
err=$TRACE
if [[ $CODE -eq 0 && $err = "mount: /VessRAID/RH: /dev/sde1 already mounted on /VessRAID/RH." ]]
then
 exit $CODE
fi

Alas the emails continue.

Hat tip to the creator of cronic, Chuck Houpt, for cluing me in to an answer, which was to look at the original script and why the error is happening. Case-sensitivity got the best of me:

if mount | grep Vessraid; then
 echo starting $1 backup >> /var/log/vessraid.log

Notice the case in VessRAID should have been:

if mount | grep VessRAID; then
 echo starting $1 backup >> /var/log/vessraid.log

Now emails only happen when there really is an error.