How to pipe a 'yes' or 'y' into a program while invoked with 'sudo' in bash?

Multi tool use
Multi tool use

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
4
down vote

favorite
1












How to pipe a Y or yes to a program while invoking with sudo?



We can type like this



yes | command
yes | yum update


How to pipe the y from yes into a program via sudo like the following?



yes| sudo command


The y from yes is be passed into command and should go into sudo and sudo shall ask for password normally. How can I do this?




sudo pipe yes




share|improve this question


























    up vote
    4
    down vote

    favorite
    1












    How to pipe a Y or yes to a program while invoking with sudo?



    We can type like this



    yes | command
    yes | yum update


    How to pipe the y from yes into a program via sudo like the following?



    yes| sudo command


    The y from yes is be passed into command and should go into sudo and sudo shall ask for password normally. How can I do this?




    sudo pipe yes




    share|improve this question
























      up vote
      4
      down vote

      favorite
      1









      up vote
      4
      down vote

      favorite
      1






      1





      How to pipe a Y or yes to a program while invoking with sudo?



      We can type like this



      yes | command
      yes | yum update


      How to pipe the y from yes into a program via sudo like the following?



      yes| sudo command


      The y from yes is be passed into command and should go into sudo and sudo shall ask for password normally. How can I do this?




      sudo pipe yes




      share|improve this question














      How to pipe a Y or yes to a program while invoking with sudo?



      We can type like this



      yes | command
      yes | yum update


      How to pipe the y from yes into a program via sudo like the following?



      yes| sudo command


      The y from yes is be passed into command and should go into sudo and sudo shall ask for password normally. How can I do this?





      sudo pipe yes





      share|improve this question













      share|improve this question




      share|improve this question








      edited Dec 15 '17 at 21:52

























      asked Dec 15 '17 at 13:41









      Abhik Bose

      1,5341217




      1,5341217




















          1 Answer
          1






          active

          oldest

          votes

















          up vote
          10
          down vote



          accepted










          sudo reads the password from the terminal directly, not from its standard input, unless the -S option is used. Thus



          yes | sudo command


          should prompt for the password (if necessary), without reading from yes, then run command as root with its standard input fed from yes’s standard output.



          If that doesn’t work, you can run the whole pipeline under sudo using something like



          sudo sh -c "yes | command"





          share|improve this answer






















          • yes | sudo command not passing y to command although sudo is asking for password. sudo sh -c "yes | command" is working fine. But is there a way to do the same without invoking another child shell explicitly?
            – Abhik Bose
            Dec 15 '17 at 13:50







          • 1




            If your pipe doesn’t survive sudo (yes | sudo command), then you need something else to set a pipe up for you; sudo itself can’t do that, so you need a subshell to do it for you (sudo sh -c "yes | command").
            – Stephen Kitt
            Dec 15 '17 at 14:18






          • 1




            Is there more than one sudo implementation?
            – Stéphane Chazelas
            Dec 15 '17 at 15:59










          • @Stéphane good point, there probably is just sudo.ws.
            – Stephen Kitt
            Dec 15 '17 at 16:03










          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: false,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          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%2f411062%2fhow-to-pipe-a-yes-or-y-into-a-program-while-invoked-with-sudo-in-bash%23new-answer', 'question_page');

          );

          Post as a guest

















          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          10
          down vote



          accepted










          sudo reads the password from the terminal directly, not from its standard input, unless the -S option is used. Thus



          yes | sudo command


          should prompt for the password (if necessary), without reading from yes, then run command as root with its standard input fed from yes’s standard output.



          If that doesn’t work, you can run the whole pipeline under sudo using something like



          sudo sh -c "yes | command"





          share|improve this answer






















          • yes | sudo command not passing y to command although sudo is asking for password. sudo sh -c "yes | command" is working fine. But is there a way to do the same without invoking another child shell explicitly?
            – Abhik Bose
            Dec 15 '17 at 13:50







          • 1




            If your pipe doesn’t survive sudo (yes | sudo command), then you need something else to set a pipe up for you; sudo itself can’t do that, so you need a subshell to do it for you (sudo sh -c "yes | command").
            – Stephen Kitt
            Dec 15 '17 at 14:18






          • 1




            Is there more than one sudo implementation?
            – Stéphane Chazelas
            Dec 15 '17 at 15:59










          • @Stéphane good point, there probably is just sudo.ws.
            – Stephen Kitt
            Dec 15 '17 at 16:03














          up vote
          10
          down vote



          accepted










          sudo reads the password from the terminal directly, not from its standard input, unless the -S option is used. Thus



          yes | sudo command


          should prompt for the password (if necessary), without reading from yes, then run command as root with its standard input fed from yes’s standard output.



          If that doesn’t work, you can run the whole pipeline under sudo using something like



          sudo sh -c "yes | command"





          share|improve this answer






















          • yes | sudo command not passing y to command although sudo is asking for password. sudo sh -c "yes | command" is working fine. But is there a way to do the same without invoking another child shell explicitly?
            – Abhik Bose
            Dec 15 '17 at 13:50







          • 1




            If your pipe doesn’t survive sudo (yes | sudo command), then you need something else to set a pipe up for you; sudo itself can’t do that, so you need a subshell to do it for you (sudo sh -c "yes | command").
            – Stephen Kitt
            Dec 15 '17 at 14:18






          • 1




            Is there more than one sudo implementation?
            – Stéphane Chazelas
            Dec 15 '17 at 15:59










          • @Stéphane good point, there probably is just sudo.ws.
            – Stephen Kitt
            Dec 15 '17 at 16:03












          up vote
          10
          down vote



          accepted







          up vote
          10
          down vote



          accepted






          sudo reads the password from the terminal directly, not from its standard input, unless the -S option is used. Thus



          yes | sudo command


          should prompt for the password (if necessary), without reading from yes, then run command as root with its standard input fed from yes’s standard output.



          If that doesn’t work, you can run the whole pipeline under sudo using something like



          sudo sh -c "yes | command"





          share|improve this answer














          sudo reads the password from the terminal directly, not from its standard input, unless the -S option is used. Thus



          yes | sudo command


          should prompt for the password (if necessary), without reading from yes, then run command as root with its standard input fed from yes’s standard output.



          If that doesn’t work, you can run the whole pipeline under sudo using something like



          sudo sh -c "yes | command"






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Dec 15 '17 at 17:25

























          answered Dec 15 '17 at 13:46









          Stephen Kitt

          143k22309372




          143k22309372











          • yes | sudo command not passing y to command although sudo is asking for password. sudo sh -c "yes | command" is working fine. But is there a way to do the same without invoking another child shell explicitly?
            – Abhik Bose
            Dec 15 '17 at 13:50







          • 1




            If your pipe doesn’t survive sudo (yes | sudo command), then you need something else to set a pipe up for you; sudo itself can’t do that, so you need a subshell to do it for you (sudo sh -c "yes | command").
            – Stephen Kitt
            Dec 15 '17 at 14:18






          • 1




            Is there more than one sudo implementation?
            – Stéphane Chazelas
            Dec 15 '17 at 15:59










          • @Stéphane good point, there probably is just sudo.ws.
            – Stephen Kitt
            Dec 15 '17 at 16:03
















          • yes | sudo command not passing y to command although sudo is asking for password. sudo sh -c "yes | command" is working fine. But is there a way to do the same without invoking another child shell explicitly?
            – Abhik Bose
            Dec 15 '17 at 13:50







          • 1




            If your pipe doesn’t survive sudo (yes | sudo command), then you need something else to set a pipe up for you; sudo itself can’t do that, so you need a subshell to do it for you (sudo sh -c "yes | command").
            – Stephen Kitt
            Dec 15 '17 at 14:18






          • 1




            Is there more than one sudo implementation?
            – Stéphane Chazelas
            Dec 15 '17 at 15:59










          • @Stéphane good point, there probably is just sudo.ws.
            – Stephen Kitt
            Dec 15 '17 at 16:03















          yes | sudo command not passing y to command although sudo is asking for password. sudo sh -c "yes | command" is working fine. But is there a way to do the same without invoking another child shell explicitly?
          – Abhik Bose
          Dec 15 '17 at 13:50





          yes | sudo command not passing y to command although sudo is asking for password. sudo sh -c "yes | command" is working fine. But is there a way to do the same without invoking another child shell explicitly?
          – Abhik Bose
          Dec 15 '17 at 13:50





          1




          1




          If your pipe doesn’t survive sudo (yes | sudo command), then you need something else to set a pipe up for you; sudo itself can’t do that, so you need a subshell to do it for you (sudo sh -c "yes | command").
          – Stephen Kitt
          Dec 15 '17 at 14:18




          If your pipe doesn’t survive sudo (yes | sudo command), then you need something else to set a pipe up for you; sudo itself can’t do that, so you need a subshell to do it for you (sudo sh -c "yes | command").
          – Stephen Kitt
          Dec 15 '17 at 14:18




          1




          1




          Is there more than one sudo implementation?
          – Stéphane Chazelas
          Dec 15 '17 at 15:59




          Is there more than one sudo implementation?
          – Stéphane Chazelas
          Dec 15 '17 at 15:59












          @Stéphane good point, there probably is just sudo.ws.
          – Stephen Kitt
          Dec 15 '17 at 16:03




          @Stéphane good point, there probably is just sudo.ws.
          – Stephen Kitt
          Dec 15 '17 at 16:03












           

          draft saved


          draft discarded


























           


          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f411062%2fhow-to-pipe-a-yes-or-y-into-a-program-while-invoked-with-sudo-in-bash%23new-answer', 'question_page');

          );

          Post as a guest
































































          AKD0dV6k F,WzSZ7JwzHe4PK6EXWYqI
          -
          cgw,rqzzuI 4HFvu04 ha3oWRG3jIGEwwgO9 p0g1arf,9IpSRBb6NLxs,4dRJ6xN

          Popular posts from this blog

          How to check contact read email or not when send email to Individual?

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Sep 26 at 0:12 ToanLuong 49 9 add a comment  |  up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this questi...
          Read more

          How many registers does an x86_64 CPU actually have?

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 2 down vote favorite I am currently learning reverse engineering and am studying the flags register. I had in my mind that rflags was just another name for one of the 16 general purpose registers, for example rax or rbx . But it looks like rflags is actually an additional register. So that makes 17 registers in total... how many more could there be? I have spent at least an hour on this and found numerous different answers. The best answer so far is this, which says that there are 40 registers in total. 16 General Purpose Registers 2 Status Registers 6 Code Segment Registers 16 SSE Registers 8 FPU/MMX Registers But if I add that up, I get 48. Could anybody provide an official answer on how many registers an x86_64 CPU has (e.g. an Intel i7). Additionally, I have seen references to 'hardware' and 'architectural' registers. What are those registers and how many are there? register x86-64 share | improve this...
          Read more

          Displaying single band from multi-band raster using QGIS

          Image
          Clash Royale CLAN TAG #URR8PPP 1 How can I extract a single band from multi-band raster in QGIS? I have an remote sensed image which has 6 bands (including NDVI band), I want to display each band separately, but have no idea how to do. I have seen some questions similar here but none worked for me. The original image (has 6 bands) is: I want to display the band 6 which should be like this: But I tried gdal_translate, and couldn't get the correct result. What I have got is: qgis raster multi-band share | improve this question edited Mar 5 at 0:53 Summer asked Mar 4 at 6:42 Summer Summer 23 6 Is this any help gis.stackexchange.com/questions/220658/… ? if not gis.stackexchange.com/questions/62133/… might help. – Michael Stimson Mar 4 at 6:46 Thanks for answering but when I used gdal_translate, qgis showed that 'Error 4: Kayena.tif: No such file or directory". Would you know how to fi...
          Read more