Problems monitoring a directory for changes and then executing exiftool












0















I'm trying to automatically rename all my photos using “exiftool”, which would be very easy, if it were not because I want to do it using a special monitored directory as input to it, thanks to “entr”.



Let me explain, the idea is that when a modification in the "input" directory is detected by “entr”, it calls “exiftool” who renames all photos in this directory. Something like:



#!/bin/sh
while true; do
echo /input | entr -d exiftool -d '%Y-%m-%d %H.%M.%S' '-FileName<${CreateDate}.${FileTypeExtension}' /input
done


When I copy 5 photos or less, all is working as expected. But... Problems arise when coping several photos at once to the "input" directory... Maybe a race condition is happening? Like “entr” is calling several times to “exiftool” to rename several times the same photos?



So, I have thought about putting a condition to “entr” to only call “exiftool” if it's not already running. But... I have no idea how to do it, or if there is a better way to solve this problem...



And please, excuse my poor English.










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    0















    I'm trying to automatically rename all my photos using “exiftool”, which would be very easy, if it were not because I want to do it using a special monitored directory as input to it, thanks to “entr”.



    Let me explain, the idea is that when a modification in the "input" directory is detected by “entr”, it calls “exiftool” who renames all photos in this directory. Something like:



    #!/bin/sh
    while true; do
    echo /input | entr -d exiftool -d '%Y-%m-%d %H.%M.%S' '-FileName<${CreateDate}.${FileTypeExtension}' /input
    done


    When I copy 5 photos or less, all is working as expected. But... Problems arise when coping several photos at once to the "input" directory... Maybe a race condition is happening? Like “entr” is calling several times to “exiftool” to rename several times the same photos?



    So, I have thought about putting a condition to “entr” to only call “exiftool” if it's not already running. But... I have no idea how to do it, or if there is a better way to solve this problem...



    And please, excuse my poor English.










    share|improve this question



























      0












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      0








      I'm trying to automatically rename all my photos using “exiftool”, which would be very easy, if it were not because I want to do it using a special monitored directory as input to it, thanks to “entr”.



      Let me explain, the idea is that when a modification in the "input" directory is detected by “entr”, it calls “exiftool” who renames all photos in this directory. Something like:



      #!/bin/sh
      while true; do
      echo /input | entr -d exiftool -d '%Y-%m-%d %H.%M.%S' '-FileName<${CreateDate}.${FileTypeExtension}' /input
      done


      When I copy 5 photos or less, all is working as expected. But... Problems arise when coping several photos at once to the "input" directory... Maybe a race condition is happening? Like “entr” is calling several times to “exiftool” to rename several times the same photos?



      So, I have thought about putting a condition to “entr” to only call “exiftool” if it's not already running. But... I have no idea how to do it, or if there is a better way to solve this problem...



      And please, excuse my poor English.










      share|improve this question
















      I'm trying to automatically rename all my photos using “exiftool”, which would be very easy, if it were not because I want to do it using a special monitored directory as input to it, thanks to “entr”.



      Let me explain, the idea is that when a modification in the "input" directory is detected by “entr”, it calls “exiftool” who renames all photos in this directory. Something like:



      #!/bin/sh
      while true; do
      echo /input | entr -d exiftool -d '%Y-%m-%d %H.%M.%S' '-FileName<${CreateDate}.${FileTypeExtension}' /input
      done


      When I copy 5 photos or less, all is working as expected. But... Problems arise when coping several photos at once to the "input" directory... Maybe a race condition is happening? Like “entr” is calling several times to “exiftool” to rename several times the same photos?



      So, I have thought about putting a condition to “entr” to only call “exiftool” if it's not already running. But... I have no idea how to do it, or if there is a better way to solve this problem...



      And please, excuse my poor English.







      shell-script






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      share|improve this question













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      edited 20 mins ago







      vicmarto

















      asked 13 hours ago









      vicmartovicmarto

      32




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