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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..
This User Gave Thanks to Reboot For This Post:
 

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IO::Async::Timer::Absolute(3pm) 			User Contributed Perl Documentation			   IO::Async::Timer::Absolute(3pm)

NAME
"IO::Async::Timer::Absolute" - event callback at a fixed future time SYNOPSIS
use IO::Async::Timer::Absolute; use POSIX qw( mktime ); use IO::Async::Loop; my $loop = IO::Async::Loop->new; my @time = gmtime; my $timer = IO::Async::Timer::Absolute->new( time => mktime( 0, 0, 0, $time[4]+1, $time[5], $time[6] ), on_expire => sub { print "It's midnight "; $loop->stop; }, ); $loop->add( $timer ); $loop->run; DESCRIPTION
This subclass of IO::Async::Timer implements one-shot events at a fixed time in the future. The object waits for a given timestamp, and invokes its callback at that point in the future. For a "Timer" object that waits for a delay relative to the time it is started, see instead IO::Async::Timer::Countdown. EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters: on_expire Invoked when the timer expires. PARAMETERS
The following named parameters may be passed to "new" or "configure": on_expire => CODE CODE reference for the "on_expire" event. time => NUM The epoch time at which the timer will expire. Once constructed, the timer object will need to be added to the "Loop" before it will work. Unlike other timers, it does not make sense to "start" this object, because its expiry time is absolute, and not relative to the time it is started. AUTHOR
Paul Evans <leonerd@leonerd.org.uk> perl v5.14.2 2012-10-24 IO::Async::Timer::Absolute(3pm)
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