The problem is this line 

my ($id) = ( $_ =~ /Logical device ID=(\w+)/ );

[download]

If you add 

use Data::Dump;
dd  { line => $_, id => $id };

[download]
right afterwards, and run your program, you can see that $id gets reinitialized upon each iteration of the loop (with each new line read)

You want this 

my $id;
while.... {

    $id  = $1 if /Logical device ID=(\w+)/ ;
    dd  { line => $_, id => $id };
}

[download]

See Tutorials: Variable Scoping in Perl: the basics, Coping with Scoping , Mini-Tutorial: Perl's Memory Management, Lexical scoping like a fox, Basic debugging checklist , brian's Guide to Solving Any Perl Problem

Also, see Parse::Report - parse Perl format-ed reports.

In reply to Re: How can i catch strings matching a regex across multiple lines? by Anonymous Monk
in thread How can i catch strings matching a regex across multiple lines? by babelfish

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