Learning the power of working from the LINUX command line, combining multi-purpose Bash commands with Perl. Explained by one of the best RedHat perl programmers.(note: I apreciate all the following wise comments, but read the first paragraph of the first article, where he explains that he is going to do some unreadable code, inscrutable code, and disposable code :)
quote:"...if perl is the magic we brew here, then bash is the cauldron we brew it in")

Two articles:

How I learned to stop worrying and love the command line by Chip Turner, part 1 (http://www.redhat.com/magazine/004feb05/features/bash/)
How I learned to stop worrying and love the command line by Chip Turner, part 2 (http://www.redhat.com/magazine/005mar05/features/perl/)

I hope you'll enjoy it as I did.

There are also other articles that might be used as incentive for further reading about oneliners. One is a nice story writen with the Humphrey Bogart films' fashion but about a perl case. Read this Ben Okopnik (a oneliner expert) story: Perl One-Liner of the Month: The Adventure of the Spicy Blonde(http://www.gacetadelinux.com/es/lg/issue96/okopnik.html). There are also newer 'adventures' at the original LG's site (http://www.linuxgazette.com/node/1090) (NOTE: see also this story... http://linuxgazette.net/issue89/okopnik.html to round all up)

cat /var/log/httpd/access_log | perl -l -a -n -e 'print $F[6]' | sort 
+| uniq -c | sort -n | tail -10

[download]

In reply to [off-site] Bash + Perl oneliners basics by chanio

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.