用字符串替换 sterr 消息 [英] Replace sterr message by string

问题描述

我正在寻找一种记录 crontable 事件的方法.因此通过在日志文件中写入执行日期和结果.例如

I'm looking for a way to log crontable events. thus by writing in a log file the date of execution and the result. for example

Tue Feb 14 11:17:01 CET 2017 Finish with success
Tue Feb 14 11:18:01 CET 2017 Finish with errors

所以对于第一个，我找到了一种方法.通过这种方式:

So for the first one i've found a way to do it. By this way:

0,5,10,15 * * * * /path/to/script  $args  2>>  /path/to/logFile.log && echo "$(date) Finish with success" >>  /path/to/logFile.log

所以当出现错误时我不知道如何用字符串$(date) Finish with errors"替换错误输出

So when there's an error I don't know how to replace the error output by the string "$(date) Finish with errors"

推荐答案

使用布尔运算符 || 添加登录失败条件，在命令失败时执行，

Add the log on failure condition with the Boolean || operator which executes on failure of the command,

0,5,10,15 * * * * /path/to/script "$args" >> /path/to/logFile.log 2>/dev/null && echo "$(date) Finish with success" >>  /path/to/logFile.log \
  || echo "$(date) Finish with errors" >>  /path/to/logFile.log 

将 stdout 附加到文件并将 stderr 附加到 NULL 作为 >>/path/to/logFile.log 2>/dev/null

Append stdout to file and stderr to NULL as >> /path/to/logFile.log 2>/dev/null

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