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Top Forums Shell Programming and Scripting How to check the varying file size Post 302424367 by Reboot on Tuesday 25th of May 2010 05:09:19 AM
Old 05-25-2010
Quote:
Originally Posted by av_vinay
How to know a file is of fixed file or not over a span of time Actually my requirement is to check the size of the file in a specific directory for 60 seconds, and if it remains the same then I have to move to some other directory.Else I have to stop the execution. Request you to guide me in knowing the varying size of the file.

I got to know to calculate the file size with the following code:

Code:
 
 filesize=`ls -l output.txt |awk '{print $5 }'`
 echo $filesize

how to check it for 60 seconds?.

Thanks.,


You can use something like following :

Code:
# S=`ls -l b |awk '{print $5 }'`;P=0
# while [ $P -lt 60 ]
    do 
     size=`ls -l b |awk '{print $5 }'` 
      echo $size
     if [[ "$size" -ne "$S" ]];then 
          echo "Size has changed... Hence moving the file..."
          mv first_location  final_location
           break
     else  
           sleep 1
     fi
    P=`expr $P + 1`
    S="$size"
    done

SmilieSmilie

Last edited by Reboot; 05-25-2010 at 06:10 AM.. Reason: typo..
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FILESIZE(3)								 1							       FILESIZE(3)

filesize - Gets file size

SYNOPSIS
int filesize (string $filename) DESCRIPTION
Gets the size for the given file. PARAMETERS
o $filename - Path to the file. RETURN VALUES
Returns the size of the file in bytes, or FALSE (and generates an error of level E_WARNING) in case of an error. Note Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected results for files which are larger than 2GB. EXAMPLES
Example #1 filesize(3) example <?php // outputs e.g. somefile.txt: 1024 bytes $filename = 'somefile.txt'; echo $filename . ': ' . filesize($filename) . ' bytes'; ?> ERRORS
/EXCEPTIONS Upon failure, an E_WARNING is emitted. NOTES
Note The results of this function are cached. See clearstatcache(3) for more details. Tip As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine which wrappers support stat(3) family of functionality. SEE ALSO
file_exists(3). PHP Documentation Group FILESIZE(3)
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