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  • How to forcefully stop and kill a process in Linux

    There are times when a process hangs or is responding very late when you feel like killing the process. The ultimate solution is to find the process id of the respective process and kill the same but below list of steps can also be used.

    How to forcefully stop a process?

    You can use "Ctrl + Z" to forcefully stop a process as used below
    # yum whatprovides */python-deltarpm
    Loaded plugins: product-id, search-disabled-repos, subscription-manager
    This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
    Repository RHEL is listed more than once in the configuration
    RHEL                                                   | 2.9 kB  00:00:00
    RHEL/primary_db                                        | 3.7 kB  00:00:00
    RHEL/filelists_db                                      | 2.2 kB  00:00:00
    No matches found
    [1]+  Stopped                 yum whatprovides */python-deltarpm

    Now stopping this way does not means that the process is killed. If I see list of process
    # ps aux | grep -i yum
    root     10511  2.8  1.7 422324 71476 pts/2    T    19:09   0:00 /usr/bin/python /usr/bin/yum whatprovides */python-deltarpm
    Here as we see the stat shows "T" which means stopped.

    How do we list stopped processes?

    By executing "jobs" command as below
    # jobs
    [1]+  Stopped                 yum whatprovides */python-deltarpm

    This command will list you all the process which are in stopped state

    How to kill a stopped process?

    Here we need to use the identifier which is assigned to each stopped process. Here in our case as we see the identifier is [1]

    So the command to kill this particular process would be
    # kill %1

    [1]+  Stopped                 yum whatprovides */python-deltarpm

    Immediately now if I try to see the list of available stopped processes
    # jobs
    [1]+  Exit 1                  yum whatprovides */python-deltarpm

    Here now it is trying to Exit as we see above

    Again after few seconds if I give the same command
    # jobs
    No output so I do not have any stopped processes

    I hope this article was useful.

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    Deepak Prasad

    Deepak Prasad is a techie and an author who is still trying to survive in this IT generation with very little knowledge he has on Linux/Unix, VMware, SAN Storage, Automation, networking etc

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    How to forcefully stop and kill a process in Linux How to forcefully stop and kill a process in Linux Reviewed by Deepak Prasad on Sunday, May 21, 2017 Rating: 5

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