前言

在Linux系統下面，top命令可以查看查看stopped進程。但是不能查看stopped進程的詳細信息。那么如何查看stopped 進程，并且殺掉這些stopped進程呢？ 

 ps -e j | grep T 

stopped進程的STAT狀態為T，一般而言,進程有下面這些狀態碼:

               D    uninterruptible sleep (usually IO)

               I    Idle kernel thread

               R    running or runnable (on run queue)

               S    interruptible sleep (waiting for an event to complete)

               T    stopped by job control signal

               t    stopped by debugger during the tracing

               W    paging (not valid since the 2.6.xx kernel)

               X    dead (should never be seen)

               Z    defunct ("zombie") process, terminated but not reaped by
                    its parent

       For BSD formats and when the stat keyword is used, additional
       characters may be displayed: 

               <    high-priority (not nice to other users)

               N    low-priority (nice to other users)

               L    has pages locked into memory (for real-time and custom
                    IO)

               s    is a session leader

               l    is multi-threaded (using CLONE_THREAD, like NPTL
                    pthreads do)

               +    is in the foreground process group

一般較常見的是5種狀態碼:

     D 不可中斷 uninterruptible sleep (usually IO)

     R 運行 runnable (on run queue)

     S 中斷 sleeping

     T 停止 traced or stopped

     Z 僵死 a defunct (”zombie”) process 

所以，可以用下面命令ps -A -ostat,ppid,pid,cmd | grep -e '^[T]' 查看stopped的進程信息。如下所示：

# ps -A -ostat,ppid,pid,cmd | grep -e '^[T]'
 
T  6777 8635 more alert_pps.log
T  6777 9654 tail -60f alert_pps.log
T  6777 10724 top
# kill -9 8635
# ps -A -ostat,ppid,pid,cmd | grep -e '^[T]'
T  6777 9654 tail -60f alert_pps.log
T  6777 10724 top
# kill -9 9654
# kill -9 10724

總結

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