while (my $line = <$fhi>) 
    {   
      //Here i write the code to get the time from text file in ech li
+ne and below i check in if condition if that exceed 34 hours then flu
+sh that line 
      
        if($Time >'34')
        { 
          $fhi->autoflush; 
        }
        print $fho;

    }

[download]

The autoflush function isn’t going to help you here. You need logic like this (untested):

while (my $line = <$fhi>)
{
    # get $time

    print $fho $line unless $time > 34;
}

[download]

That is: print to the output file only those lines which pass the test, and silently ignore those which don’t. And note that your statement: print $fho; needs to be changed to print $fho $line; in order to work correctly here.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re^3: How to delete a particular line in a text file after some operation on that text file at the same time by Athanasius
in thread How to delete a particular line in a text file after some operation on that text file at the same time by ppp

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