Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic

Re: Help in using backtick operator

by Perlbotics (Chancellor)
on Oct 31, 2011 at 20:23 UTC ( #934960=note: print w/replies, xml ) Need Help??

in reply to Help in using backtick operator

Not sure if I understand your question correctly, but I would start with:

  • chomp $date; , or better:
  • build $date without shelling out (e.g. POSIX::strftime or localtime and sprintf)
  • using a correct regular expression, e.g. if ($file =~ m/AAAA\*.*?$date/) { ... }
    Update: Missed, that there is a literal * in the filename. \$ matches literal $, not $date. Non-greedy matching is probably not necessary here, but does no harm (in response to question below). It would be a good idea to also anchor the regexp.
  • (also add use strict; and use warnings; if not already done so)

Replies are listed 'Best First'.
Re^2: Help in using backtick operator
by manutd (Initiate) on Oct 31, 2011 at 20:33 UTC
    Yeah i did notice i made a mistake in the regex. But even after making the change it isn't working. if ($file =~ m/AAAA\*$date/) is not working. I haven't understood why you used ? in the regex too.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://934960]
[karlgoethebier]: ...good Hot tuna. Note the stacks & racks in the background
[karlgoethebier]: ..the last hippies. They still perform. At least the survivors...
[Discipulus]: not survived
[Discipulus]: has pm some danish monk?
[Discipulus]: erix the problem was not rain in the brain.. ;=)

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (8)
As of 2017-11-17 20:20 GMT
Find Nodes?
    Voting Booth?
    In order to be able to say "I know Perl", you must have:

    Results (272 votes). Check out past polls.