If I have a bunch of tar.gz files, and I know these all contain just log file data, and I just want to find and list particular lines that match a given regex pattern -- that is, I don't care which log file(s) are involved, I just want the matching lines -- I would either use a shell command like this: 
gunzip -c *.tgz | grep target_regex > target.hits

[download]
(You might need an extra option, "--binary-files=text" on the grep command, depending on which version of grep you have.)

Or else I'd write a perl script like this: 

#!/usr/bin/perl

use strict;
use PerlIO:gzip;

for my $file (<*.tgz>) {
    open( T, "<:gzip", $file ) or do {
        warn "open failed on $file: $!\n";
        next;
    };
    while (<T>) {
        print if /target_regex/;
    }
}

[download]
(And in the latter case, I'd probably use @ARGV to set the path for where to find the tgz files, what regex to apply, and/or whether to read the list of tgz file names from STDIN, so that the script serves a general range of uses.)

In reply to Re: Search in the .tgz file without unpack and untar by graff
in thread Search in the .tgz file without unpack and untar by vinoth.ree

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.