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From: suvayu ali <fatkasuvayu+linux@gmail.com>
Subject: Re: Re: Search files in a folder
Date: Sun, 12 Sep 2010 21:22:09 -0700
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To: =?UTF-8?B?64W47KCV7YOc?= <basil83@gmail.com>
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2010/9/12 =EB=85=B8=EC=A0=95=ED=83=9C <basil83@gmail.com>:
> Thank you everyone.
>
> I learned I could do it with grep, but I don't know how to use grep
> properly.
>

grep is one of my favourite *nix tools. :)

You can try invoking grep in many ways. these are my most used options,

1. simply search for a regex and show results.
    grep -nH -E <regex> <wildcard_to_match files>
2. search for results and show results with context
    grep -nHB <number> -E <regex> <wildcard_to_match files>
    # context lines before matching lines
    grep -nHA <number> -E <regex> <wildcard_to_match files>
    # context lines after matching lines
    grep -nHC <number> -E <regex> <shell_wildcard_to_match files>
    # context lines from both before and after matching lines
3. You can try `M-x find-grep' if you want more control over what file
you want to search
    find -type f -name <shell_wildcard_to_match_files> -print0 | xargs
-0 grep -nH -E <regex>

Note: find and grep regex are a little different from emacs regex
because of some quoting differences. 'man grep' is your friend.

GL :)

--=20
Suvayu

Open source is the future. It sets us free.