Since, despite my prodding, you have not provided an SSCCE here is one which uses Test::More and sample data, demonstrating that the filter works.

use strict;
use warnings;

use Test::More tests => 1;

my $out = filter ();
my $want = qq#GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCE
+D_COMPRESSION,TABLE_COMPRESSION,101189,count,DBA_TABLES,SAPABW,/BIC/D
+1002562,,"ENABLED","OLTP",\n#;

is ($out, $want);

sub filter {
    my @save = (<DATA>);
    my $keep = '';
    foreach (@save){
        $_ = "" unless ($_ =~ m/"ENABLED","OLTP",/ && $_ =~ m/^GREP/ )
+;
        $_ = "" if ($_ =~m/SYSMAN/|| m/SYS/);
        if ($_) {
            $keep = $_;
            last;
        }
    }
    return $keep;
}

__DATA__
GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION,
+TABLE_COMPRESSION,101189,count,DBA_TABLES,SYS,/BIC/D1002561,,"ENABLED
+","OLTP",
GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION,
+TABLE_COMPRESSION,101189,count,DBA_TABLES,SAPABW,/BIC/D1002562,,"ENAB
+LED","OLTP",
GREPME>>,xxxxx,BP5,2017-11- 27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION
+,TABLE_COMPRESSION,101189,count,DBA_TABLES,SAPABW,/BIC/D1002566,,"ENA
+BLED","OLTP",
GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION,
+TABLE_COMPRESSION,101189,count,DBA_TABLES,SYS,/BIC/D100256P,,"ENABLED
+","OLTP",

[download]

There are clearly things to be improved here - there's no point matching against both /SYS/ and /SYSMAN/ for example - but the concept of an SSCCE and the value of it should be informative.

Please remember to put your data as well as your code within <code> tags when posting here.

In reply to Re^5: how to modify foreach by hippo
in thread how to modify foreach by OliverR

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.