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@fangpeishi fangpeishi/cronic.sh
Last active Aug 29, 2015

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#!/bin/bash
# Cronic v2 - cron job report wrapper
# Copyright 2007 Chuck Houpt. No rights reserved, whatsoever.
# Public Domain CC0: http://creativecommons.org/publicdomain/zero/1.0/
set -eu
OUT=/tmp/cronic.out.$$
ERR=/tmp/cronic.err.$$
TRACE=/tmp/cronic.trace.$$
HOSTNAME=`hostname`
USER=`whoami`
set +e
eval "("$@")" >$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 " $USER@$HOSTNAME: 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 -f "$OUT"
rm -f "$ERR"
rm -f "$TRACE"
@fangpeishi

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commented Jul 13, 2015

Example:

@hourly cronic 'uptime' # MUST USE Single quote !
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