"As an aside, I must say it's not easy finding info on Perl-style regex/grep if you're not actually coding in Perl. For the life of me I haven't been able to find authoritative info on setting delimiters, and was thrown by Privoxy's liberal use of things other than "/". And so on. Will keep learning!"

A good place to start would be "perlretut - Perl regular expressions tutorial". This has links to further, relevant information (including more detailed descriptions of the topics covered in the tutorial).

Here's the documentation for grep.

If you have questions arising from any of that documentation, feel free to ask but it would probably be better to raise them in a new thread. Also, the guidelines in "How do I post a question effectively?" will help in getting the best answers.

-- Ken

In reply to Re^5: GREP Question: Filtering out third-party images with Privoxy by kcott
in thread GREP Question: Filtering out third-party images with Privoxy by karld12

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.