MSYS2:PID与windows 进程ID

快来打我* 2021-12-10 05:55 294阅读 0赞

MSYS2下启动的进程ID分两种：MSYS2空间的PID和windows的PID  
以mysql为例，在MSYS2窗口启动mysqld

$ mysqld --console

如下我们在windows CMD窗口用netstat查找3306端口的进程ID为2356

C:\>netstat -aon | findstr 0.0.0.0:3306
      TCP    0.0.0.0:3306           0.0.0.0:0              LISTENING       2356

但在MSYS2下用`ps`找到的PID却是9744

$ ps -ef |grep mysqld
    guyadong    9744    1184 pty1     17:28:04 /j/facelog-install/3rd/mysql-5.6.44-winx64/bin/mysqld

网上一通找，找到这篇文章,找到了解决办法  
[《Mingw-users PID question - Correlation between MSYS - WINDOWS》][Mingw-users PID question - Correlation between MSYS - WINDOWS]

MSYS2的`ps`有一个`-W`参数用于显示MSYS进程对应的windows PID,上面的`ps`命令加上`-W`,参数效果如下

$ ps -efW |grep mysqld
    guyadong    9744    1184 pty1     17:28:04 /j/facelog-install/3rd/mysql-5.6.44-winx64/bin/mysqld
           0    2356       0 ?        17:28:04 D:\j\facelog-install\3rd\mysql-5.6.44-winx64\bin\mysqld.exe

第二行的输出结果中PID即为9744这个MSYS2 进程对应的window PID

以下为MSYS2的`ps`输出的命令行帮助信息：

$ ps --help
    Usage: ps [-aefls] [-u UID] [-p PID]
    
    Report process status
    
     -a, --all       show processes of all users
     -e, --everyone  show processes of all users
     -f, --full      show process uids, ppids
     -h, --help      output usage information and exit
     -l, --long      show process uids, ppids, pgids, winpids
     -p, --process   show information for specified PID
     -s, --summary   show process summary
     -u, --user      list processes owned by UID
     -V, --version   output version information and exit
     -W, --windows   show windows as well as cygwin processes
    
    With no options, ps outputs the long format by default

[Mingw-users PID question - Correlation between MSYS - WINDOWS]: https://sourceforge.net/p/mingw/mailman/message/30566147/