Redirecting log files to null writing junk into log files

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I have log files which are created from below command:



exec >$logfile


But when it reaches some size, I am redirecting to null while process is running, like so:



>$logfilemanually


But after that it writes some junk into log file for first few lines.



How to avoid that?







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    up vote
    0
    down vote

    favorite












    I have log files which are created from below command:



    exec >$logfile


    But when it reaches some size, I am redirecting to null while process is running, like so:



    >$logfilemanually


    But after that it writes some junk into log file for first few lines.



    How to avoid that?







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have log files which are created from below command:



      exec >$logfile


      But when it reaches some size, I am redirecting to null while process is running, like so:



      >$logfilemanually


      But after that it writes some junk into log file for first few lines.



      How to avoid that?







      share|improve this question














      I have log files which are created from below command:



      exec >$logfile


      But when it reaches some size, I am redirecting to null while process is running, like so:



      >$logfilemanually


      But after that it writes some junk into log file for first few lines.



      How to avoid that?









      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 28 '17 at 10:21









      JdeBP

      28.8k459135




      28.8k459135










      asked Nov 28 '17 at 9:28









      Daev

      11




      11

























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