AWK, SED, GREP, FIND

The basics of these 4 utilities is a must know !!! I have found a few tutorials which atleast taught me the basics which HELPS a lot !!!

First learn this : http://gnosis.cx/publish/programming/regular_expressions.html

AWK : http://gregable.com/2010/09/why-you-should-know-just-little-awk.html

SED : http://www.readylines.com/linux/sed/basic-examples

GREP : http://www.readylines.com/linux/grep/basics You will find a lot on grep but this one of the most basic one I could find.

FIND : http://content.hccfl.edu/pollock/unix/findcmd.htm

Well after all this I couldnt resist but googling up python appended to each of these commands and well a few things to read ....

http://stackoverflow.com/questions/209470/can-i-use-python-as-a-bash-replacement

PyAWK : http://pyawk.sourceforge.net/

PySED : http://sourceforge.net/projects/pysed/ (very old)

EDIT : this will help a bit more http://jmason.org/software/sitescooper/tao_regexps.html