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Top Forums UNIX for Dummies Questions & Answers How to use sed modify specific lines Post 302196400 by era on Sunday 18th of May 2008 06:17:03 AM
Old 05-18-2008
One of my personal favorites are Kernighan & Pike's The Unix Programming Environment but it's very old, so some of the peripheral details have changed quite a lot since then. Another perennial is Friedl's Mastering Regular Expressions, although you might struggle with it at first if you are not familiar with the tools it covers.

The O'Reilly sed & awk book is a good introduction to sed and awk, although there are a lot of on-line tutorials which are probably just as good.

The FAQ section has more links; I'm new to Unix. Which books should I read? - The UNIX Forums
 

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GREP(1) 						      General Commands Manual							   GREP(1)

NAME
grep - search a file for lines containing a given pattern SYNOPSIS
grep [-elnsv] pattern [file] ... OPTIONS
-e -e pattern is the same as pattern -c Print a count of lines matched -i Ignore case -l Print file names, no lines -n Print line numbers -s Status only, no printed output -v Select lines that do not match EXAMPLES
grep mouse file # Find lines in file containing mouse grep [0-9] file # Print lines containing a digit DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1 occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is returned. SEE ALSO
cgrep(1), fgrep(1), sed(1), awk(9). GREP(1)
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