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Karl Morrison
Asked: 2015-04-10 08:31:02 +0800 CST

ps -xa | grep node to kill specific process

  • 772

I am currently using the following command to get a process:

ps -xa | grep node

Which results in the following:

13611 ?        Sl     0:03 /opt/brackets/Brackets-node /opt/brackets/node-core
20713 pts/1    Sl     0:00 node --harmony app.js
20838 pts/1    S+     0:00 grep node

I use the command kill -9 20713 to kill the node --harmony app.js process.

How can I kill the node --harmony app.js every single time with one command? I am tired of typing in the process number every time.

command-line

3 Answers

  1. Best Answer

    Use pkill:

    pkill node

    This would match the other command as well, so fine tune it: 

    pkill -f "node --harmony app.js"

    This matches the full command line (-f) exactly, so it should only hit the desired command.

    • 10

  2. You can use killall. The simplest syntax is:

    killall "Process_name"

    In you case:

    killall "node --harmony app.js"

    The upside of killall is that it will match the exact name so there is no chance of killing other processes unwantedly.

    Although you can use -r option to express the process as a regular expression pattern like pkill.

    Check man killall for more info.

    • 3

  3. Use an alias and your own "command word" for it.

    E.G.go to your home Dir and create the file .bash_aliases

    Put the following text into the file

    alias nerdalert='pkill -f "node --harmony app.js"'

    and then search in your home folder for your .bashrc looking for this part and make sure it's not commented out.

    # Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.

if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

    Now type into your terminal 

    source /home/${USER}/.bash_aliases

    and try your brand new "command" a.k.a. alias

    nerdalert

    Enjoy ^^

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