Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Re^2: Comparing Values PER Sub-folder

by omegaweaponZ (Beadle)
on Sep 05, 2012 at 00:07 UTC ( #991710=note: print w/ replies, xml ) Need Help??


in reply to Re: Comparing Values PER Sub-folder
in thread Comparing Values PER Sub-folder

I think I see your logic, I can probably also just do an if/else to see if curdir matches to compare and contrast. I slightly modified the code to do this, but I'm getting no returns. Where am I going wrong? $dir is current working directory

find(\&countLines, $dir); sub countLines { /\.txt$/ or return; my $completePath = $File::Find::name; my $curDir = $File::Find::dir; my $curFile = $_; tie my @filelines, 'Tie::File', $curFile or die; my $numLines = @filelines; print "Cur dir: $curDir; Cur file: $curFile; Num Lines: $numLines +\n"; }


Comment on Re^2: Comparing Values PER Sub-folder
Download Code
Re^3: Comparing Values PER Sub-folder
by Kenosis (Priest) on Sep 05, 2012 at 00:21 UTC

    Let me first address another issue... Tie::File can be rather slow--especially when used on large files. This is why I used File::Slurp for the line count. Also, remember that you should untie the formerly tied array when done with it.

    I ran your subroutine, adding untie @filelines; before the end of the code block, and it executed just fine (it ran fine w/o that addition, too, but it's best to follow a tie with an untie). I'm unsure why you're not getting any output from the routine...

      Good call about untie. But even if I use slurp I'm still not recieving any print return results.
      find(\&countLines, $dir); sub countLines { /\.txt$/ or return; my $completePath = $File::Find::name; my $curDir = $File::Find::dir; my $curFile = $_; my @lines = read_file( $curFile ) ; my $numLines = @lines; print "Cur dir: $curDir; Cur file: $curFile; Num Lines: $numLines +\n";

      Is this definitely finding every .txt file in ALL sub-directories? I don't understand why it wouldn't even print a current directory or current file unless that .txt parameter is not working and its finding 0 files.

        Yes, provided that the top dir contains *.txt files. You can try commenting out /\.txt$/ or return;, so all files are displayed. Another option is to initialize $dir with the complete path to the 'top' directory you want File::Find to traverse, in case '.' may not be working.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://991710]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others scrutinizing the Monastery: (7)
As of 2015-07-04 11:31 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (59 votes), past polls