Hi novice2015

The link to open that BillKSmith mentioned in his post has the following text. 

# in-memory files
21. open(my $memory, ">", \$var)
22.     or die "Can't open memory file: $!";
23. print $memory "foo!\n";              # output will appear in $var

[download]
This shows how to write to an in-memory file.

To read from an in memory file, you would do this: 

#!/usr/bin/perl
use strict;
use warnings;

my $file = 'here
are
some
words
I
want
';

open my $fh, '<', \$file;

chomp(my @words = <$fh>);

my $pattern = join "|", @words;

print $pattern;

[download]
That would be a way to not need the tmp. file.

In reply to Re^3: removing the need for tmp files from script by Cristoforo
in thread removing the need for tmp files from script by novice2015

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