Pretty cool but when used on a file it breaks hyphenated words into their
components and counts them separately:
17 occurrences of 'Acct'
3 occurrences of 'Authentic'
etc
instead of:
3 occurrences of Acct-Authentic
3 occurrences of Acct-Delay-Time
1 occurrences of Acct-Input-Octets
1 occurrences of Acct-Input-Packets
1 occurrences of Acct-Output-Octets
1 occurrences of Acct-Output-Packets
3 occurrences of Acct-Session-Id
1 occurrences of Acct-Session-Time
3 occurrences of Acct-Status-Type
----- Original Message -----
From: "Michael Lamertz" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "Chris Brown" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, April 24, 2001 1:03 PM
Subject: Re: [BPQ] help!! any idea whats wrong with this??
> Paul ([EMAIL PROTECTED]) wrote:
> >
> > #!/usr/local/bin/perl -w
> >
> > use strict
> > open (FILE,$0) or die $!; # this reads itself
> > my($data,%count);
> > { local $/ = undef; # erases the record seperator for this block
> > $data = <FILE>; # slurps in the whole file to $data
> > }
> > close(FILE); # good habit
> > map { $count{$_}++ } $data =~ /(\w+)/sog; # watch the context!
> > print map { "$count{$_} occurances of '$_'\n" } sort keys %count;
> >
> > Perl is a wonderfully concise language.
> > The above is strictly given as an example of a few performance tricks
> > that are worth researching. =o)
>
> I agree printing the map output, but I disagree using map to calculate
> the sums. map always generates a new array that immediately gets dumped
> since it's not assigned. A foreach would be nicer to system resources
> and better to read. To make it short, use it postfix:
>
> $count{$_}++ foreach ($data=~ /.../);
>
> Check 'perldoc perlfaq6' for reference.
>
> --
> If we fail, we will lose the war.
>
> Michael Lamertz | [EMAIL PROTECTED] / [EMAIL PROTECTED]
> Nordstr. 49 | http://www.lamertz.net
> 50733 Cologne | Work: +49 221 3091-121
> Germany | Priv: +49 221 445420 / +49 171 6900 310
>
