Question

我一直在使用cronic使作业成功完成时使来自cron作业的电子邮件静音。我试图对其进行自定义，以便当响应代码为0且错误输出与字符串“ mount: /VessRAID/RH: /dev/sde1 already mounted on /VessRAID/RH.”匹配时，不发送电子邮件。下面是脚本，然后是电子邮件的内容，然后是我试图抑制不起作用的电子邮件的尝试。知道我做错了什么吗？

#!/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"

这是电子邮件通知的样子：

 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)

这是我尝试的包装脚本：

#!/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

A，继续发送电子邮件。

Answer 1

向cronic的创建者Chuck Houpt致敬的提示为我提供了一个答案，该答案是查看原始脚本以及错误发生的原因。区分大小写是我最好的：

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

请注意，VessRAID中的情况应该是：

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

现在，只有在确实存在错误时，才会发送电子邮件。

使用cronic减少包装脚本中的电子邮件通知以成功进行备份

1 个答案: