重定向标准错误与日期从cron日志文件 [英] Redirect stderr with date to log file from Cron

问题描述

一个bash脚本由cron运行，标准错误将被重定向到一个日志文件，这一切工作正常。
的code是：

A bash script is run from cron, stderr is redirected to a logfile, this all works fine. The code is:

*/10 5-22 * * * /opt/scripts/sql_fetch 2>> /opt/scripts/logfile.txt

我要prePEND日在日志文件中的每一行，这也不行，的code是：

*/10 5-22 * * * /opt/scripts/sql_fetch 2>> ( /opt/scripts/predate.sh >> /opt/scripts/logfile.txt )

在 predate.sh 脚本如下所示：

#!/bin/bash
while read line ; do
    echo "$(date): ${line}"
done

所以，code的第二位不起作用，可能有人提供一些线索？
谢谢你。

So the second bit of code doesn't work, could someone shed some light? Thanks.

推荐答案

我有一个小脚本cronlog.sh做到这一点。该脚本code

I have a small script cronlog.sh to do this. The script code

#!/bin/sh
echo "[`date`] Start executing $1"
$@ 2>&1 | sed -e "s/\(.*\)/[`date`] \1/"
echo "[`date`] End executing $1"

那么你可以做

cronlog.sh /opt/scripts/sql_fetch >> your_log_file

结果举例

cronlog.sh echo 'hello world!'

[Mon Aug 22 04:46:03 CDT 2011] Start executing echo
[Mon Aug 22 04:46:03 CDT 2011] helloworld!
[Mon Aug 22 04:46:03 CDT 2011] End executing echo

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