G'day lddzjwwy,

The problem with your code is that ".*" matches zero or more characters; thus, "/^<(.*)/" matches "<" and "<xxx;".

Here's a barebones script that captures the data you want. I'll leave you to format the output however you want it.

#!/usr/bin/env perl

use strict;
use warnings;

my $re = qr{^<(.+);};

while (<DATA>) {
    if (/$re/) {
        print_log_entry_header($1);
    }
    else {
        print;
    }
}

sub print_log_entry_header {
    print "*** Log Entry: @_ ***\n";
}

__DATA__
<syrip:survey;
ORDERED

<

EX-A    9UCIE6CG0CL235_____D331   AD-12   TIME 130429 1428  PAGE    1
SOFTWARE RECOVERY SURVEY

EVENT TYPE          EXPLANATION                         EVENTCNT  FRDE
+L
    8 FORLOPP       MANUALLY INITIATED FORLOPP RELEASE                
+1
    7 LARGE         OTHER-EEDWL                                  
    6 LARGE         OTHER-STARTUP                                
    5 LARGE         INIT START/RESTART AFTER INIT START          

EVENT CODE   INF1   INF2   INF3   INF4   SIDE STATE   DATE   TIME   AC
+T
    8 H'310C H'0000 H'0F98 H'0001 H'0000 A    SINGLE  130116 153704 NO
    7 H'9003 H'000A H'0000 H'0000 H'0000 B    SINGLE  120912 113918 NO
    6 H'9003 H'000A H'0000 H'0000 H'0000 B    SINGLE  120906 090851 NO
    5 H'9004 H'0000 H'0000 H'0000 H'0000 B    SINGLE  120905 171355 NO

END


EX-A    9UCIE6CG0CL235_____D331   AD-12   TIME 130429 1428  PAGE    1
<sastp;
......
[download]

Output:

$ pm_custom_file_split.pl
*** Log Entry: syrip:survey ***
ORDERED

<

EX-A    9UCIE6CG0CL235_____D331   AD-12   TIME 130429 1428  PAGE    1
SOFTWARE RECOVERY SURVEY

EVENT TYPE          EXPLANATION                         EVENTCNT  FRDE
+L
    8 FORLOPP       MANUALLY INITIATED FORLOPP RELEASE                
+1
    7 LARGE         OTHER-EEDWL                                  
    6 LARGE         OTHER-STARTUP                                
    5 LARGE         INIT START/RESTART AFTER INIT START          

EVENT CODE   INF1   INF2   INF3   INF4   SIDE STATE   DATE   TIME   AC
+T
    8 H'310C H'0000 H'0F98 H'0001 H'0000 A    SINGLE  130116 153704 NO
    7 H'9003 H'000A H'0000 H'0000 H'0000 B    SINGLE  120912 113918 NO
    6 H'9003 H'000A H'0000 H'0000 H'0000 B    SINGLE  120906 090851 NO
    5 H'9004 H'0000 H'0000 H'0000 H'0000 B    SINGLE  120905 171355 NO

END


EX-A    9UCIE6CG0CL235_____D331   AD-12   TIME 130429 1428  PAGE    1
*** Log Entry: sastp ***
......
[download]