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Re: Re^3: Fetching unique owner name

by Anonymous Monk
on Dec 03, 2002 at 18:55 UTC ( [id://217311]=note: print w/replies, xml ) Need Help??


in reply to Re^3: Fetching unique owner name
in thread Fetching unique owner name

Thanks for all the help.

This works except I keep getting these error messages along with output: 
Use of uninitialized value at per2.pl line 5.
Use of uninitialized value at per2.pl line 5.
Use of uninitialized value at per2.pl line 8.
Use of uninitialized value at per2.pl line 8.
smith
rogers
richards

[download]
Here is the script: 
#!/usr/local/bin/perl -w

use strict;
my  ( @temp, %authors );
@temp = sort map { my @b=split; $b[2]; } `ls -l /directory/pth/here`;
foreach ( @temp )
{
   $authors{$_}=1 if not $authors{$_} and length $_; 
#I had to add $_ because the other way "$authors{$}=1" gave me an erro
+r
}
print "$_\n" for keys %authors;

[download]

Replies are listed 'Best First'.
Re^5: Fetching unique owner name
by JaWi (Hermit) on Dec 03, 2002 at 19:08 UTC
    Hi,

    Of course! Your right! I should stop coding Perl from the head and use the interpreter instead. If I tested it first, I would have come to the following code: 

    ...
@temp = sort map { ( split )[ 2 ]; } `ls -l /directory/pth/here`;
foreach( @temp )
{
  $authors{$_}=1 if not $authors{$_} and length $_;
}
...

    [download]
    Indeed, I made a little typo in my previous solution, $authors{$} had to be $authors{$_};

    -- JaWi

    "A chicken is an egg's way of producing more eggs."

[reply]
[d/l]
      Thanks, now I just have to sort it and I will be okay. Again thanks for all your assistance!
[reply]

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