Bash命令没有执行时通过cron作业 - PHP [英] Bash commands not executed when through cron job - PHP

问题描述

我有一个cron作业每五分钟运行一个PHP脚本; PHP脚本在脚本结尾处执行两个bash命令。我知道脚本正在运行，由于它附加的日志文件。当我通过Ubuntu Gnome终端手动运行PHP脚本时，两个bash命令执行完美;但是当PHP脚本通过cron触发时，两个bash命令不会运行。有任何想法吗？

  $ command ='notify-send''count（$ infoleakPosts）。 
`$ command`; 
 
 $ command ='firefox http://example.com'; 
`$ command`; 
 
 * / 1 * * * * php /home/andrew/grab.php USERNAME PASSWORD＃JOB_ID_1 
  

通常，您的cron脚本将在不同的用户帐户下运行，并且可能设置了不同的环境路径。

尝试设置命令行以使用命令的完整路径，即。 / path / to / notify-sendx New Posts。

您可以使用

您也可以从命令中获取输出。

您可以从您的常规终端获取通知发送以帮助调试。

  $ output =`$ command`; 
 error_log（$ output）; 
  

I have a cron job running a PHP script every five minutes; the PHP script executes two bash commands at the end of the script. I know the script is running due to a log file it appends to. When I run the PHP script manually via the Ubuntu Gnome Terminal both bash commands execute flawlessly; however when the PHP script is triggered via cron, the two bash commands are not ran. Any ideas?

$command = 'notify-send "' . count($infoleakPosts) . '  New Posts."';
`$command`;

$command = 'firefox http://example.com';
`$command`;

*/1 * * * * php /home/andrew/grab.php USERNAME PASSWORD # JOB_ID_1

解决方案

Generally your cron scripts are going to be run under a different user account, and probably have a different environment path set up.

Try setting your command lines to use the full path to the command, ie. /path/to/notify-send "x New Posts".

You can use which notify-send from your regular terminal to get the path to put into your script.

You can also grab the output from your command to help debugging. Use of the backtick operator will return the output, so you can assign it to a variable and/or dump it.

$output = `$command`;
error_log($output);

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