Hello Monks,

This question should be a breeze to you all.

To open a file, read the contents, print them and close the file - I used to use the following piece of code

open(FILE, "<", $filename) or die "Unable to open file:$filename <$!>"
+;
while(<FILE>) {
  print "$_"
}
close(FILE);

[download]


But I have seen somewhere ( from net, not sure where ) that the below version is better.

1) Using $lfh instead of FILE directly
2) Using a variable $line as $line = <$lfh>, instead of directly using $_ 

my $lfh;
open($lfh, "<", $filename) or die "Unable to open file:$filename <$!>"
+;
while( my $line = <$lfh>) {
  print "$line"
}
close($lfh);

[download]


Could you please explain the difference in usage and the better form of using it?

Thanks

In reply to Which way is recommended ? by matrixmadhan

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