Trying to create a cron to Rsync then tar the folder





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I'm stuck at the first hurdle!



I want to run a couple of commands from a bash script. First something like this to rsync some directories:



rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder


Then something like this to tar and copy the files somewhere else:



cd /location/of/local/folder
tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz home


I hope this is making sense.



The problem is that obviously I wish for the rsync to finish before the directory is tar'd. So is there a bit of code I can use to make sure that rsync has finished before running the tar command?



e.g. (pseudo code)



rsync
while(is syncing){
sleep 10
}
tar


Or will my .sh script only run the next line after the first line has finished and exited?










share|improve this question































    1















    I'm stuck at the first hurdle!



    I want to run a couple of commands from a bash script. First something like this to rsync some directories:



    rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder


    Then something like this to tar and copy the files somewhere else:



    cd /location/of/local/folder
    tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz home


    I hope this is making sense.



    The problem is that obviously I wish for the rsync to finish before the directory is tar'd. So is there a bit of code I can use to make sure that rsync has finished before running the tar command?



    e.g. (pseudo code)



    rsync
    while(is syncing){
    sleep 10
    }
    tar


    Or will my .sh script only run the next line after the first line has finished and exited?










    share|improve this question



























      1












      1








      1


      2






      I'm stuck at the first hurdle!



      I want to run a couple of commands from a bash script. First something like this to rsync some directories:



      rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder


      Then something like this to tar and copy the files somewhere else:



      cd /location/of/local/folder
      tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz home


      I hope this is making sense.



      The problem is that obviously I wish for the rsync to finish before the directory is tar'd. So is there a bit of code I can use to make sure that rsync has finished before running the tar command?



      e.g. (pseudo code)



      rsync
      while(is syncing){
      sleep 10
      }
      tar


      Or will my .sh script only run the next line after the first line has finished and exited?










      share|improve this question
















      I'm stuck at the first hurdle!



      I want to run a couple of commands from a bash script. First something like this to rsync some directories:



      rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder


      Then something like this to tar and copy the files somewhere else:



      cd /location/of/local/folder
      tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz home


      I hope this is making sense.



      The problem is that obviously I wish for the rsync to finish before the directory is tar'd. So is there a bit of code I can use to make sure that rsync has finished before running the tar command?



      e.g. (pseudo code)



      rsync
      while(is syncing){
      sleep 10
      }
      tar


      Or will my .sh script only run the next line after the first line has finished and exited?







      shell-script cron rsync






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 1 hour ago









      Rui F Ribeiro

      41.9k1483142




      41.9k1483142










      asked May 4 '12 at 16:01









      Thomas ClaysonThomas Clayson

      240212




      240212






















          1 Answer
          1






          active

          oldest

          votes


















          4















          Commands in a shell script are executed sequentially. If your first command is rsync, the next command will not execute until rsync completes.



          What you want to be sure of is that rsync finishes successfully before continuing to the next command.



          This is not the most elegant solution, but the easiest to implement.



          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder &&
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder


          Keep in mind this will only work if the exit status of rsync is 0. Any other exit status and command 2 will not run.




          AND and OR lists are sequences of one of more pipelines separated by the &&
          and || control operators, respectively. AND and OR lists are executed
          with left associativity. An AND list has the form
          command1 && command2
          command2 is executed if, and only if, command1 returns an exit status of zero.


          You could add more intelligence to your script if you performed different actions based on the rsync EXIT VALUES.



          #!/bin/bash
          PATH=/bin:/usr/bin:/sbin:/usr/sbin

          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder

          if [ $? != "0" ]
          then
          echo "There was a problem"
          else
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder
          fi





          share|improve this answer


























          • This is a brilliant and insightful answer. Thank you very much for taking the time. :) You've really helped me. Thank you.

            – Thomas Clayson
            May 8 '12 at 8:14












          Your Answer








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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          4















          Commands in a shell script are executed sequentially. If your first command is rsync, the next command will not execute until rsync completes.



          What you want to be sure of is that rsync finishes successfully before continuing to the next command.



          This is not the most elegant solution, but the easiest to implement.



          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder &&
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder


          Keep in mind this will only work if the exit status of rsync is 0. Any other exit status and command 2 will not run.




          AND and OR lists are sequences of one of more pipelines separated by the &&
          and || control operators, respectively. AND and OR lists are executed
          with left associativity. An AND list has the form
          command1 && command2
          command2 is executed if, and only if, command1 returns an exit status of zero.


          You could add more intelligence to your script if you performed different actions based on the rsync EXIT VALUES.



          #!/bin/bash
          PATH=/bin:/usr/bin:/sbin:/usr/sbin

          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder

          if [ $? != "0" ]
          then
          echo "There was a problem"
          else
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder
          fi





          share|improve this answer


























          • This is a brilliant and insightful answer. Thank you very much for taking the time. :) You've really helped me. Thank you.

            – Thomas Clayson
            May 8 '12 at 8:14
















          4















          Commands in a shell script are executed sequentially. If your first command is rsync, the next command will not execute until rsync completes.



          What you want to be sure of is that rsync finishes successfully before continuing to the next command.



          This is not the most elegant solution, but the easiest to implement.



          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder &&
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder


          Keep in mind this will only work if the exit status of rsync is 0. Any other exit status and command 2 will not run.




          AND and OR lists are sequences of one of more pipelines separated by the &&
          and || control operators, respectively. AND and OR lists are executed
          with left associativity. An AND list has the form
          command1 && command2
          command2 is executed if, and only if, command1 returns an exit status of zero.


          You could add more intelligence to your script if you performed different actions based on the rsync EXIT VALUES.



          #!/bin/bash
          PATH=/bin:/usr/bin:/sbin:/usr/sbin

          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder

          if [ $? != "0" ]
          then
          echo "There was a problem"
          else
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder
          fi





          share|improve this answer


























          • This is a brilliant and insightful answer. Thank you very much for taking the time. :) You've really helped me. Thank you.

            – Thomas Clayson
            May 8 '12 at 8:14














          4












          4








          4








          Commands in a shell script are executed sequentially. If your first command is rsync, the next command will not execute until rsync completes.



          What you want to be sure of is that rsync finishes successfully before continuing to the next command.



          This is not the most elegant solution, but the easiest to implement.



          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder &&
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder


          Keep in mind this will only work if the exit status of rsync is 0. Any other exit status and command 2 will not run.




          AND and OR lists are sequences of one of more pipelines separated by the &&
          and || control operators, respectively. AND and OR lists are executed
          with left associativity. An AND list has the form
          command1 && command2
          command2 is executed if, and only if, command1 returns an exit status of zero.


          You could add more intelligence to your script if you performed different actions based on the rsync EXIT VALUES.



          #!/bin/bash
          PATH=/bin:/usr/bin:/sbin:/usr/sbin

          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder

          if [ $? != "0" ]
          then
          echo "There was a problem"
          else
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder
          fi





          share|improve this answer
















          Commands in a shell script are executed sequentially. If your first command is rsync, the next command will not execute until rsync completes.



          What you want to be sure of is that rsync finishes successfully before continuing to the next command.



          This is not the most elegant solution, but the easiest to implement.



          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder &&
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder


          Keep in mind this will only work if the exit status of rsync is 0. Any other exit status and command 2 will not run.




          AND and OR lists are sequences of one of more pipelines separated by the &&
          and || control operators, respectively. AND and OR lists are executed
          with left associativity. An AND list has the form
          command1 && command2
          command2 is executed if, and only if, command1 returns an exit status of zero.


          You could add more intelligence to your script if you performed different actions based on the rsync EXIT VALUES.



          #!/bin/bash
          PATH=/bin:/usr/bin:/sbin:/usr/sbin

          rsync -e ssh -az user-whatever@website.com:/home /location/of/local/folder

          if [ $? != "0" ]
          then
          echo "There was a problem"
          else
          tar zcf /var/backups/home-`date +%Y%m%d`.tar.gz /location/of/local/folder
          fi






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited May 4 '12 at 16:39

























          answered May 4 '12 at 16:12









          George MGeorge M

          9,37123347




          9,37123347













          • This is a brilliant and insightful answer. Thank you very much for taking the time. :) You've really helped me. Thank you.

            – Thomas Clayson
            May 8 '12 at 8:14



















          • This is a brilliant and insightful answer. Thank you very much for taking the time. :) You've really helped me. Thank you.

            – Thomas Clayson
            May 8 '12 at 8:14

















          This is a brilliant and insightful answer. Thank you very much for taking the time. :) You've really helped me. Thank you.

          – Thomas Clayson
          May 8 '12 at 8:14





          This is a brilliant and insightful answer. Thank you very much for taking the time. :) You've really helped me. Thank you.

          – Thomas Clayson
          May 8 '12 at 8:14


















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