Anish Kumar K. wrote:
Hi I need help regarding substituion of varaibles with values
That is a Frequently Asked Question.
perldoc -q "How can I expand variables in text strings"
Say I have a txt file (a.txt)
which has only one line:
Hi $name
The PL file
========
open INPUT, "a.txt";
You should *ALWAYS* verify that the file opened correctly.
open INPUT, '<', 'a.txt' or die "Cannot open 'a.txt' $!";
my $name="Anish";
my $temp="";
while (<INPUT>)
{
$temp=$temp.$_;
}
The usual way to slurp the entire contents of a file is:
my $temp = do { local $/; <INPUT> };
Or you could use the File::Slurp module.
close(INPUT);
print "Content is: $temp";
In the output I want the $name to get as Anish..O/P like Hi Anish
John
--
use Perl;
program
fulfillment
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