Thanks ken! I tested the above suggestion by you. Below is the whole code: 
@file = glob "$dir/MyAccount_OneTimePay_BaseLine.usr/Action.c";
my $row = 1;
foreach $file (@file) {
my $col = 0;
open(my $FILEHANDLE, "<", $file) or die "cannot open file $file: $!";
my @eachline = <$FILEHANDLE>;
my @keywords = qw{lr_start_transaction web_reg_find lr_think_time web_
+reg_save_param lr_start_sub_transaction web_url web_submit_data};
my $pattern = join("|" => map { "(?<$_>\\b$_\\b)" } @keywords);

my %count;
    for (@eachline) {
        while (/$pattern/g) {
            ++$count{(keys %+)[0]};
        }
    }
    $worksheet1-> write($row,$col,(split '/',$file)[-1],$format2);
    $col++;
for (@keywords) {
    $worksheet1->write($row,$col, "$count{$_}", $format2);
    $col++;
    }
close($FILEHANDLE);
$row++;
    }

[download]
Seems %count is not initialized and hence when no pattern is found my writing to XLS is impacted (columns are getting clubbed). I am using Spreadsheet::WriteExcel module. Let me know if this understanding is correct. Below is the message from the console: 
Use of uninitialized value within %count in string at Aldol.pl line 76
+, <$FILEHANDLE> line 550.

[download]
Thanks Xhings!

In reply to Re^2: Better way of doing! by Xhings
in thread Better way of doing! by Xhings

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.