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











up vote
3
down vote

favorite












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




























    up vote
    3
    down vote

    favorite












    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


























      up vote
      3
      down vote

      favorite









      up vote
      3
      down vote

      favorite











      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















      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




      ps






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 1 hour ago









      Jeff Schaller

      37.6k1052121




      37.6k1052121










      asked 2 hours ago









      muhammad

      541514




      541514






















          1 Answer
          1






          active

          oldest

          votes

















          up vote
          7
          down vote













          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',
            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








            up vote
            7
            down vote













            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

























              up vote
              7
              down vote













              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























                up vote
                7
                down vote










                up vote
                7
                down vote









                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 1 hour ago









                Stephen Kitt

                161k24358433




                161k24358433






























                    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

                    What visual should I use to simply compare current year value vs last year in Power BI desktop

                    Image
                    0 I have column SubToBind that shows current year ratio and column PY SubToBind which shows previous year ratio. How can I simply create a card that would be displaying them both in a nice way? Something like that: I cannot achieve that with regular card, I also tried Card with States by OKViz but also unable to see both values. In KPI visual - I dont like the word "Goal", it will confuse end users. Are there any cards or other visuals that would do the job? Thanks powerbi dax powerbi-embedded share | improve this question edited Jun 11 '18 at 20:11 Oleg ...
                    Read more

                    How to ignore python UserWarning in pytest?

                    Image
                    up vote 1 down vote favorite I am using openpyxl for parsing .xlsm files, and pytest for testing. When I open a file, I get the: OpenPyxl -> UserWarning: Data Validation extension is not supported and will be removed That is not really a problem bcs. program works and I can't change the .xlsm file to fix that. But... When I run pytest with something like: def test_wrong_file_format(): assert check_excel(open_excel('file.xlsm')) == True I will get the warning i mentioned altought check_excel(open_excel('file.xlsm')) returns True and the test should suceed... Is there a nice way to tell the pytest that "It's not a bug it's a feature" and tests should pass even when they get this warning? Is there other way than using something like: with pytest.warns(UserWarning): ...
                    Read more

                    Alexandru Averescu

                    Image
                    Alexandre Averescu Alexandru Averescu Naissance 3 avril 1859 Babele, Ismail  (ro) près de Izmaïl (principauté de Moldavie) Décès 2 octobre 1938 (à 79 ans) [ 1 ] Bucarest Origine   Roumanie Arme cavalerie Grade Maréchal Années de service 1901-1917 Commandement chef d'état-major général 2 e  armée 3 e  armée Groupe d'armée sud armée du Danube Conflits Guerre russo-turque de 1877-1878 Deuxième guerre balkanique Première Guerre mondiale Faits d'armes Bataille de Turtucaia/Tutrakan Bataille de Mărăști Distinctions Autres fonctions 3 fois président du Conseil des ministres ministre des Affaires étrangères ministre sans portefeuille conseiller de la Couronne modifier   Alexandre Averescu (en roumain : Alexandru Averescu .mw-parser-output .prononciation>a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Loudspeaker.svg/11px-Loudspeaker.svg.png")center ...
                    Read more