How can I use the watch command to run a bash script and monitor output file?












0















So I have a bash script "example.sh" that will write into an output file, say "tmp_output.txt". (It will empty the file and rewrite if data already exists in it)



How can I use the watch command so that it will run "example.sh" every two seconds and view the changes being made in "tmp_output.txt"?



The watch command needs to used within the bash script.










share|improve this question









New contributor




Austin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

























    0















    So I have a bash script "example.sh" that will write into an output file, say "tmp_output.txt". (It will empty the file and rewrite if data already exists in it)



    How can I use the watch command so that it will run "example.sh" every two seconds and view the changes being made in "tmp_output.txt"?



    The watch command needs to used within the bash script.










    share|improve this question









    New contributor




    Austin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0








      So I have a bash script "example.sh" that will write into an output file, say "tmp_output.txt". (It will empty the file and rewrite if data already exists in it)



      How can I use the watch command so that it will run "example.sh" every two seconds and view the changes being made in "tmp_output.txt"?



      The watch command needs to used within the bash script.










      share|improve this question









      New contributor




      Austin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      So I have a bash script "example.sh" that will write into an output file, say "tmp_output.txt". (It will empty the file and rewrite if data already exists in it)



      How can I use the watch command so that it will run "example.sh" every two seconds and view the changes being made in "tmp_output.txt"?



      The watch command needs to used within the bash script.







      bash shell-script watch






      share|improve this question









      New contributor




      Austin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      Austin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question








      edited 18 mins ago









      PRY

      2,55831026




      2,55831026






      New contributor




      Austin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 39 mins ago









      AustinAustin

      1




      1




      New contributor




      Austin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      Austin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Austin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















          0






          active

          oldest

          votes











          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
          });


          }
          });






          Austin is a new contributor. Be nice, and check out our Code of Conduct.










          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f502450%2fhow-can-i-use-the-watch-command-to-run-a-bash-script-and-monitor-output-file%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          Austin is a new contributor. Be nice, and check out our Code of Conduct.










          draft saved

          draft discarded


















          Austin is a new contributor. Be nice, and check out our Code of Conduct.













          Austin is a new contributor. Be nice, and check out our Code of Conduct.












          Austin is a new contributor. Be nice, and check out our Code of Conduct.
















          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.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f502450%2fhow-can-i-use-the-watch-command-to-run-a-bash-script-and-monitor-output-file%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

          CARDNET

          Boot-repair Failure: Unable to locate package grub-common:i386

          濃尾地震