I am writing script to search data from around 400 files. I need all the details like in each file how many times that pattern present. I have around 8000 paterns which I need to search each in all 400 files. currently I am using grep command in scriot which makes the performance down. Now I am thinking to use multithreading here..but I am totally newbee for this..could you please help me on getting correct solution

Here is my current code 

 while(@data = $sth->fetchrow_array())
{
        $result = `grep -i -w -c "$data[0]"  /u05/oracle/R12COE/spotli
+ghter/Search_Files/Forms/*`;
        @search = split('\n',$result);
        $arrsize = @search;
        for($i = 0; $i < $arrsize; $i++)
        {
                ($path, $count) = split(':',$search[$i]);

                ($filename, $fextn) = split('\.',$path);

                $filename = `basename $path`;

                #$fextn = `echo $fname | sed 's/.*\.//'`;

                #$fname = `echo $path | perl -pe 's|.*/||'`;

[download]

In reply to Searching pattern in 400 files and getting count out of each file by Rita_G

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.