Interesting timing... I was just working this out too....found the answer on google. :-) Anyways, just for kicks, here is the way I used it.... I had a few dictionary files, which I wanted to split and merge into "alphabetical files" , like a, b, c, etc so I could search for a word faster. So I need to open filehandle variables pointing to a..z.
#!/usr/bin/perl
use warnings;
use strict;
my $file = shift;
open(FH, "< $file") or die $!;
my %fh;
foreach my $let('a'..'z'){
open( $fh{$let}," >> letters/$let");
}
while(<FH>){
my $count = 0;
my $word = $_;
chomp $word;
$word = lc $word;
$word =~ s/[[:^print:]\s+]+//g; #only printable characters
#skip words with apostrophe, dashes, spaces, or a .w ending
my $word1 = $word;
$count = $word1 =~ tr/\'-_ &,.0-9//;
if($count > 0){next}
my $let = substr($word, 0, 1);
if (!defined $fh{$let}){print $word;next}
else{
print { $fh{$let} } "$word\n";}
}
__END__
and then to "uniqify the files
#!/usr/bin/perl
use warnings;
use strict;
foreach my $file('a'..'z'){
system("sort -u letters/$file > letters/$file.txt");
}
__END__
I'm not really a human, but I play one on earth.
flash japh
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.