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I want to implement top function for a web app. Is it possible to get the output of the top command in non-interactive shell?

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top -b -n 1

From man top:

  -b : Batch mode operation
        Starts top in 'Batch mode', which could be useful for 
        sending output from  top  to other programs  or  to  
        a file.  In this mode, top will not accept input and runs
        until the iterations limit you've set with the '-n' 
        command-line option  or  until killed.
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  • so if i want to add a column in non interactive mode. say i want to add swap usage by process how do i do that ? usually in interactive mode this is what i do : shift + f ----> press p ---> hit enter. Commented Jun 21, 2017 at 13:49
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    For completeness, answering Sagar's question: When running top in interactive mode you can choose columns and orderings, then press "W" to save $HOME/.toprc . This file will be read in next calls to "top", be interactive or not. Simply remove that file to return to defaults. Regards, /Angel Commented Dec 1, 2017 at 11:22

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