Question

我有一个QNAP框，运行linux的味道，我在使用php脚本获取进程的PID时遇到问题。到目前为止我所拥有的：

$command = "PATH=$PATH:/share/MD0_DATA/.qpkg/Optware/bin: nohup /opt/bin/plowdown -o /share/MD0_DATA/Qdownload/plowshare http://www.megaupload.com/?d=m7duotr1 2> /share/MD0_DATA/Qdownload/plowshare/outputeeds.txt > /dev/null &";
exec($command, $out);
$result = $out[0];
echo $result;

如果我通过PUTTY运行命令，我会得到：

[~] # nohup /opt/bin/plowdown -o /share/MD0_DATA/Qdownload/plowshare http://www.megaupload.com/?d=m7duotr1 2> /share/MD0_DATA/Qdownload/plowshare/outputteeds.txt > /dev/null &
22526

我做错了什么？

谢谢，

的Cristian。

Answer 1

shell通常不会打印它在后台启动的进程的PID，除非它是交互式的。否则，您只需从启动的所有进程的PID中获取大量输出。

所以你需要让shell打印PID。做

 exec("(PATH=$PATH:/share/MD0_DATA/.qpkg/Optware/bin: " . 
      "nohup /opt/bin/plowdown -o /share/MD0_DATA/Qdownload/plowshare " .
      "http://www.megaupload.com/?d=m7duotr1 2> " . 
      "/share/MD0_DATA/Qdownload/plowshare/outputeeds.txt > /dev/null &);" . 
      "echo $$;", $out);

Answer 2

http://nl2.php.net/manual/en/function.getmypid.php

PHP：获取特定进程的PID

2 个答案: