This is wether short nor elegant, but works: 
use strict;
use warnings;

my $header = <DATA>;
my %handles;

while ( <DATA> )
{
    my $handle;
    my $key = substr($_,0,13);
   
    # check if file is already open
    if ( $handles{$key} )
    {
        $handle = $handles{$key};
    }
    else
    {
        #if not, open it and store the handle
        my $name = $key;
        $name =~ s/://;
        
        open $handle, ">$name.txt" or die $!;
        print $handle $header;
        $handles{$key} = $handle;
    }
    
    print $handle $_;
}

__DATA__
    Usr1369***12556
06-01-0101:00    1169 <snipped off>
06-01-0101:00    2396 <snipped off>
06-01-0103:12    1169 <snipped off>
06-01-0103:12    2569 <snipped off>
06-01-0301:00    1169 <snipped off>
06-01-0301:00    2396 <snipped off>

[download]


holli, /regexed monk/

In reply to Re: Split file based on field by holli
in thread Split file based on field by calv1n

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.