One-liner to execute a process in a current directory with no output and disown it?












2















I'm trying to do something fairly simple:



$ ( cd /opt/myprogram && ./myprocess.sh >/dev/null 2>&1 & ; disown $! )
-bash: syntax error near unexpected token `;'


How can I bust out a one-liner to, in a sub-shell, execute a given script from a given folder, nulling the output, and sending it to the background?










share|improve this question





























    2















    I'm trying to do something fairly simple:



    $ ( cd /opt/myprogram && ./myprocess.sh >/dev/null 2>&1 & ; disown $! )
    -bash: syntax error near unexpected token `;'


    How can I bust out a one-liner to, in a sub-shell, execute a given script from a given folder, nulling the output, and sending it to the background?










    share|improve this question



























      2












      2








      2








      I'm trying to do something fairly simple:



      $ ( cd /opt/myprogram && ./myprocess.sh >/dev/null 2>&1 & ; disown $! )
      -bash: syntax error near unexpected token `;'


      How can I bust out a one-liner to, in a sub-shell, execute a given script from a given folder, nulling the output, and sending it to the background?










      share|improve this question
















      I'm trying to do something fairly simple:



      $ ( cd /opt/myprogram && ./myprocess.sh >/dev/null 2>&1 & ; disown $! )
      -bash: syntax error near unexpected token `;'


      How can I bust out a one-liner to, in a sub-shell, execute a given script from a given folder, nulling the output, and sending it to the background?







      bash disown






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 21 '16 at 19:01









      lesmana

      14.5k115873




      14.5k115873










      asked Jan 24 '13 at 1:32









      Naftuli KayNaftuli Kay

      12.5k56159256




      12.5k56159256






















          3 Answers
          3






          active

          oldest

          votes


















          10














          The problem is that you are using both & and ; together. They are both command terminators, and can not be used at the same time. Here is your example fixed:



          ( cd /opt/myprogram && ./myprocess.sh >/dev/null 2>&1 & disown )





          share|improve this answer
























          • I am trying a command on similar lines : bosh -e bosh -d service-fabrik ssh broker -c "tail -F /var/vcap/sys/log/service-fabrik-broker/service-fabrik-broker.log > /var/vcap/sys/log/service-fabrik-broker/error.log 2>&1 & disown" , but it doesn't seem to work. Any idea what could be wrong ? Thanks

            – akskap
            Apr 30 '18 at 13:24



















          1














          The nohup utility was designed for pretty much what you're looking for:



          Usage: nohup COMMAND [ARG]...
          or: nohup OPTION
          Run COMMAND, ignoring hangup signals.

          If standard input is a terminal, redirect it from /dev/null.
          If standard output is a terminal, append output to 'nohup.out' if possible,
          '$HOME/nohup.out' otherwise.
          If standard error is a terminal, redirect it to standard output.
          To save output to FILE, use 'nohup COMMAND > FILE'.





          share|improve this answer































            0














            This worked for me:



            $(cd /opt/myprogram && myprocess.sh 1>/dev/null 2>/dev/null &) &





            share|improve this answer








            New contributor




            Ulysnep is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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              3 Answers
              3






              active

              oldest

              votes








              3 Answers
              3






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              10














              The problem is that you are using both & and ; together. They are both command terminators, and can not be used at the same time. Here is your example fixed:



              ( cd /opt/myprogram && ./myprocess.sh >/dev/null 2>&1 & disown )





              share|improve this answer
























              • I am trying a command on similar lines : bosh -e bosh -d service-fabrik ssh broker -c "tail -F /var/vcap/sys/log/service-fabrik-broker/service-fabrik-broker.log > /var/vcap/sys/log/service-fabrik-broker/error.log 2>&1 & disown" , but it doesn't seem to work. Any idea what could be wrong ? Thanks

                – akskap
                Apr 30 '18 at 13:24
















              10














              The problem is that you are using both & and ; together. They are both command terminators, and can not be used at the same time. Here is your example fixed:



              ( cd /opt/myprogram && ./myprocess.sh >/dev/null 2>&1 & disown )





              share|improve this answer
























              • I am trying a command on similar lines : bosh -e bosh -d service-fabrik ssh broker -c "tail -F /var/vcap/sys/log/service-fabrik-broker/service-fabrik-broker.log > /var/vcap/sys/log/service-fabrik-broker/error.log 2>&1 & disown" , but it doesn't seem to work. Any idea what could be wrong ? Thanks

                – akskap
                Apr 30 '18 at 13:24














              10












              10








              10







              The problem is that you are using both & and ; together. They are both command terminators, and can not be used at the same time. Here is your example fixed:



              ( cd /opt/myprogram && ./myprocess.sh >/dev/null 2>&1 & disown )





              share|improve this answer













              The problem is that you are using both & and ; together. They are both command terminators, and can not be used at the same time. Here is your example fixed:



              ( cd /opt/myprogram && ./myprocess.sh >/dev/null 2>&1 & disown )






              share|improve this answer












              share|improve this answer



              share|improve this answer










              answered Jan 24 '13 at 1:54









              jordanmjordanm

              30.9k38695




              30.9k38695













              • I am trying a command on similar lines : bosh -e bosh -d service-fabrik ssh broker -c "tail -F /var/vcap/sys/log/service-fabrik-broker/service-fabrik-broker.log > /var/vcap/sys/log/service-fabrik-broker/error.log 2>&1 & disown" , but it doesn't seem to work. Any idea what could be wrong ? Thanks

                – akskap
                Apr 30 '18 at 13:24



















              • I am trying a command on similar lines : bosh -e bosh -d service-fabrik ssh broker -c "tail -F /var/vcap/sys/log/service-fabrik-broker/service-fabrik-broker.log > /var/vcap/sys/log/service-fabrik-broker/error.log 2>&1 & disown" , but it doesn't seem to work. Any idea what could be wrong ? Thanks

                – akskap
                Apr 30 '18 at 13:24

















              I am trying a command on similar lines : bosh -e bosh -d service-fabrik ssh broker -c "tail -F /var/vcap/sys/log/service-fabrik-broker/service-fabrik-broker.log > /var/vcap/sys/log/service-fabrik-broker/error.log 2>&1 & disown" , but it doesn't seem to work. Any idea what could be wrong ? Thanks

              – akskap
              Apr 30 '18 at 13:24





              I am trying a command on similar lines : bosh -e bosh -d service-fabrik ssh broker -c "tail -F /var/vcap/sys/log/service-fabrik-broker/service-fabrik-broker.log > /var/vcap/sys/log/service-fabrik-broker/error.log 2>&1 & disown" , but it doesn't seem to work. Any idea what could be wrong ? Thanks

              – akskap
              Apr 30 '18 at 13:24













              1














              The nohup utility was designed for pretty much what you're looking for:



              Usage: nohup COMMAND [ARG]...
              or: nohup OPTION
              Run COMMAND, ignoring hangup signals.

              If standard input is a terminal, redirect it from /dev/null.
              If standard output is a terminal, append output to 'nohup.out' if possible,
              '$HOME/nohup.out' otherwise.
              If standard error is a terminal, redirect it to standard output.
              To save output to FILE, use 'nohup COMMAND > FILE'.





              share|improve this answer




























                1














                The nohup utility was designed for pretty much what you're looking for:



                Usage: nohup COMMAND [ARG]...
                or: nohup OPTION
                Run COMMAND, ignoring hangup signals.

                If standard input is a terminal, redirect it from /dev/null.
                If standard output is a terminal, append output to 'nohup.out' if possible,
                '$HOME/nohup.out' otherwise.
                If standard error is a terminal, redirect it to standard output.
                To save output to FILE, use 'nohup COMMAND > FILE'.





                share|improve this answer


























                  1












                  1








                  1







                  The nohup utility was designed for pretty much what you're looking for:



                  Usage: nohup COMMAND [ARG]...
                  or: nohup OPTION
                  Run COMMAND, ignoring hangup signals.

                  If standard input is a terminal, redirect it from /dev/null.
                  If standard output is a terminal, append output to 'nohup.out' if possible,
                  '$HOME/nohup.out' otherwise.
                  If standard error is a terminal, redirect it to standard output.
                  To save output to FILE, use 'nohup COMMAND > FILE'.





                  share|improve this answer













                  The nohup utility was designed for pretty much what you're looking for:



                  Usage: nohup COMMAND [ARG]...
                  or: nohup OPTION
                  Run COMMAND, ignoring hangup signals.

                  If standard input is a terminal, redirect it from /dev/null.
                  If standard output is a terminal, append output to 'nohup.out' if possible,
                  '$HOME/nohup.out' otherwise.
                  If standard error is a terminal, redirect it to standard output.
                  To save output to FILE, use 'nohup COMMAND > FILE'.






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jan 24 '13 at 5:54









                  tylerltylerl

                  1,866816




                  1,866816























                      0














                      This worked for me:



                      $(cd /opt/myprogram && myprocess.sh 1>/dev/null 2>/dev/null &) &





                      share|improve this answer








                      New contributor




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

























                        0














                        This worked for me:



                        $(cd /opt/myprogram && myprocess.sh 1>/dev/null 2>/dev/null &) &





                        share|improve this answer








                        New contributor




                        Ulysnep 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







                          This worked for me:



                          $(cd /opt/myprogram && myprocess.sh 1>/dev/null 2>/dev/null &) &





                          share|improve this answer








                          New contributor




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










                          This worked for me:



                          $(cd /opt/myprogram && myprocess.sh 1>/dev/null 2>/dev/null &) &






                          share|improve this answer








                          New contributor




                          Ulysnep 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 answer



                          share|improve this answer






                          New contributor




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                          answered 12 mins ago









                          UlysnepUlysnep

                          1




                          1




                          New contributor




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                          New contributor





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






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






























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