How can I use `--lines` `--row` modifiers in `ps` command












4














I often used the following command,



ps -eo pid,cmd,pcpu,pmem --sort=-pcpu | head


But in the man page I saw the following to output modifiers,



   --lines n
Set screen height.
--rows n
Set screen height.


As if these modifiers can limit row height then I don't have to use any kind of piping which gives me a bit comfort on writing scripts with python subprocess.



But I have no idea how can I use them. As I have already tried adding them at the end of the command.










share|improve this question





























    4














    I often used the following command,



    ps -eo pid,cmd,pcpu,pmem --sort=-pcpu | head


    But in the man page I saw the following to output modifiers,



       --lines n
    Set screen height.
    --rows n
    Set screen height.


    As if these modifiers can limit row height then I don't have to use any kind of piping which gives me a bit comfort on writing scripts with python subprocess.



    But I have no idea how can I use them. As I have already tried adding them at the end of the command.










    share|improve this question



























      4












      4








      4







      I often used the following command,



      ps -eo pid,cmd,pcpu,pmem --sort=-pcpu | head


      But in the man page I saw the following to output modifiers,



         --lines n
      Set screen height.
      --rows n
      Set screen height.


      As if these modifiers can limit row height then I don't have to use any kind of piping which gives me a bit comfort on writing scripts with python subprocess.



      But I have no idea how can I use them. As I have already tried adding them at the end of the command.










      share|improve this question















      I often used the following command,



      ps -eo pid,cmd,pcpu,pmem --sort=-pcpu | head


      But in the man page I saw the following to output modifiers,



         --lines n
      Set screen height.
      --rows n
      Set screen height.


      As if these modifiers can limit row height then I don't have to use any kind of piping which gives me a bit comfort on writing scripts with python subprocess.



      But I have no idea how can I use them. As I have already tried adding them at the end of the command.







      ps






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Dec 13 '18 at 12:12









      Jeff Schaller

      39k1053125




      39k1053125










      asked Dec 13 '18 at 11:05









      muhammad

      546515




      546515






















          1 Answer
          1






          active

          oldest

          votes


















          9














          The screen height doesn’t limit the total output, it determines how often the header is repeated (if requested):



          ps -eo pid,cmd,pcpu,pmem --sort=-pcpu --lines=20 --header


          will repeat the header every twenty lines (so you’ll get a header, nineteen lines of output, a header, etc.).






          share|improve this answer





















            Your Answer








            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "106"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: false,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: null,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














            draft saved

            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f487741%2fhow-can-i-use-lines-row-modifiers-in-ps-command%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            9














            The screen height doesn’t limit the total output, it determines how often the header is repeated (if requested):



            ps -eo pid,cmd,pcpu,pmem --sort=-pcpu --lines=20 --header


            will repeat the header every twenty lines (so you’ll get a header, nineteen lines of output, a header, etc.).






            share|improve this answer


























              9














              The screen height doesn’t limit the total output, it determines how often the header is repeated (if requested):



              ps -eo pid,cmd,pcpu,pmem --sort=-pcpu --lines=20 --header


              will repeat the header every twenty lines (so you’ll get a header, nineteen lines of output, a header, etc.).






              share|improve this answer
























                9












                9








                9






                The screen height doesn’t limit the total output, it determines how often the header is repeated (if requested):



                ps -eo pid,cmd,pcpu,pmem --sort=-pcpu --lines=20 --header


                will repeat the header every twenty lines (so you’ll get a header, nineteen lines of output, a header, etc.).






                share|improve this answer












                The screen height doesn’t limit the total output, it determines how often the header is repeated (if requested):



                ps -eo pid,cmd,pcpu,pmem --sort=-pcpu --lines=20 --header


                will repeat the header every twenty lines (so you’ll get a header, nineteen lines of output, a header, etc.).







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Dec 13 '18 at 12:46









                Stephen Kitt

                165k24366445




                165k24366445






























                    draft saved

                    draft discarded




















































                    Thanks for contributing an answer to Unix & Linux Stack Exchange!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.





                    Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


                    Please pay close attention to the following guidance:


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f487741%2fhow-can-i-use-lines-row-modifiers-in-ps-command%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    Plaza Victoria

                    In PowerPoint, is there a keyboard shortcut for bulleted / numbered list?

                    How to put 3 figures in Latex with 2 figures side by side and 1 below these side by side images but in...