Logical OR using sed


 
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Old 09-12-2007
Logical OR using sed

Hello,

This must be a novice question to you folks. But I searched through various places and did not find an answer to this question:

How do we perform a logical OR operation using sed command? For example, I want to write a command that extracts all the text between pattern1 and pattern2 OR pattern3. I tried using the below command, and it didn't work:
sed -n '/pattern1,pattern2|pattern3/'p <file_name>

Please advice me in case any of you have a solution.

Thanks,
Thejasvi V
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PURITY-NG(6)							   Games Manual 						      PURITY-NG(6)

NAME
purity-ng - general purpose purity testing software SYNOPSIS
purity-ng [OPTION]... list|FILE|TESTNAME DESCRIPTION
Purity is an interactive purity test program with a simple, user interface and datafile format. For each test, questions are printed to the your terminal, and you are prompted for an answer to the current question. At a prompt, these are your choices: y Answer "yes" to the question. n Answer "no" to the question. b Backup one question, if you answered it incorrectly, or someone is watching you take the test, and you don't (or do) want to admit a different answer. s Print your current score on the test you are taking. q Quit the test, and print the current score. ? Print a help screen for the current prompt. At the end of the test, your score is printed out. For most purity tests, lower scores denote more "experience" of the test material. OPTIONS
--version print current version of purity-ng -h, --help show the help message and exit -p print the test without prompting for answers. -r decrypt the test using the Rot 13 algorithm. To get a list of all purity tests available globally on your system, run purity-ng list. AUTHORS
purity was originally written by Eric Lechner in 1989. purity-ng is a reimplementation of purity in Python for modern systems, written by Simon Fondrie-Teitler and Luke Faraone. This manual page was written by Luke Faraone. BUGS
If you find bugs in the application, please report these to <https://bugs.launchpad.net/purity-ng> or to your distribution's distributor. SEE ALSO
purity(6) Running purity-ng format provides documentation about the datafile format. Additional documentation is available online at <http://packages.python.org/purity-ng>. January 7, 2011 PURITY-NG(6)