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Re: How to set timer in perl

by Bloodnok (Vicar)
on Jun 13, 2013 at 13:33 UTC ( #1038739=note: print w/replies, xml ) Need Help??

in reply to How to set timer in perl

In order to guide/help you without repeating steps you've already tried, whomsoever does reply would prefer to have a look see at what you've tried, by way of (skeletal) implementation, thus far i.e. in what way(s) did you try use alarm that didn't work.

A user level that continues to overstate my experience :-))

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Re^2: How to set timer in perl
by Rahul Gupta (Sexton) on Jun 14, 2013 at 05:35 UTC

    Here is the code which i have tried.

    #!/usr/bin/perl -w use strict; my $FH; local $SIG{ALRM} = sub { die "Timeout no data received\n"; }; open ($FH, '<', "file1") or die "cant open file to read file$!.\n"; alarm 5; while (<$FH>){ if ($_ =~ m/any string/i){ print "$_\n"; alarm 0; } } close ($FH);
      I'd venture to say that you're hitting EOF and exiting the loop before the five seconds have passed. Perhaps you want File::Tail?

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[choroba]: I started with *nix at the University, we had some Sparcs and Linux machines
[choroba]: that was around 1994 or 95
hippo actually introduced Linux to his university.
Discipulus mmh will be a fun meditation: How I started with computers and programming..
[Discipulus]: bravo hippo! well done

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