What have you tried? Can you make a guess?

Kiran,

Here's what you want ..

#!/usr/bin/perl -w

use strict;

#  Filter specific strings from an input file into specific
#  files.

{
    #  Open input and output files.

    open ( INPUT, '<', 'html_LogFiles' ) or
      die "Unable to open input file: $!";


    open ( BSC, '>', 'BSC' ) or
      die "Unable to open BSC: $!";
    open ( SBSCSubsystem, '>', 'BSC' ) or
      die "Unable to open SBSCSubsystem: $!";
    open ( MCBTSSubsystem, '>', 'BSC' ) or
      die "Unable to open MCBTSSubsystem: $!";

    #  Process input lines into output files. Note that
    #  an input line may match more than one pattern and
    #  therefore may appear in more than one output
    #  file.
    
    while(<INPUT>) {

      #  This breaks the incoming line into the part before
      #  the pattern, the pattern itself, and after the 
      #  pattern. We then output the last two parts, 
      #  followed by the last part. This effectively
      #  truncates the first part.

      if ( /^(.+)(BSC-)(.+)$/ ) {

        print BSC "$2$3 $3\n";
      }

      if ( /^(.+)(SBSCSubsystem-)(.+)$/ ) {

        print SBSCSubsystem "$2$3 $3\n";
      }

      if ( /^(.+)(MCBTSSubsystem-)(.+)$/ ) {

        print MCBTSSubsystem "$2$3 $3\n";
      }
    }
    #  Close input and output files.

    close ( INPUT );

    close ( BSC );
    close ( SBSCSubsystem );
    close ( MCBTSSubsystem );
}
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