jitendra B wrote:
Hi All,
Hello,
Can you please let me know the following snippset? why it is used for?
select( STDERR );
Select STDERR as the default filehandle.
$| = 1;
Turn on autoflush for the current default filehandle.
(Redundant because STDERR autoflushes by default.)
select( STDOUT );
Select STDOUT as the default filehandle.
$| = 1;
Turn on autoflush for the current default filehandle.
print STDERR "\nThis is india\n\n";
print STDERR "Usage: This is build";
print STDERR "where: base PL label\n";
Print some stuff.
and second question
****************
second question:- I want to open a file read+write mode and change the
some content in same file without creating another file and copy to it.
MY SCRIPT(Not working as i wish to )
********************
#!/usr/bin/perl
The next two lines should be:
use warnings;
use strict;
open(FILE,">test.txt") or die "Could not open the file: $!";
You are opening "test.txt" in write mode which means that the file will
be truncated to zero length first, effectively erasing all the data.
@file=<FILE>;
foreach (@file)
{
$_=~s/BLR/bangalore/g;
print "$_";
}
close(FILE);
#!/usr/bin/perl
use warnings;
use strict;
use Tie::File;
tie my @file, 'Tie::File', 'test.txt' or die "Cannot open 'test.txt'
because: $!";
s/BLR/bangalore/g for @file;
untie @file;
John
--
Any intelligent fool can make things bigger and
more complex... It takes a touch of genius -
and a lot of courage to move in the opposite
direction. -- Albert Einstein
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