LinuxQuestions.org - [SOLVED] grep Bracket Expressions

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grep Bracket Expressions

Hi,

In the info document for 'grep', in the section:
3.2 Character Classes and Bracket Expressions
I am curious on what the following bracket expressions are used for - I played with them to try and find out on my own, but was not successful:

Code:

 `[.'

      represents the open collating symbol.





 `.]'

      represents the close collating symbol.





 `[='

      represents the open equivalence class.





 `=]'

      represents the close equivalence class.

I am well acquainted with the other bracket expressions, respectfully.

Clifton

This appears to define those terms (but I don't understand it....;))

http://www.opengroup.org/onlinepubs/...99/xbd/re.html

Quote:

Originally Posted by pixellany (Post 3931261)

This appears to define those terms (but I don't understand it....;))

http://www.opengroup.org/onlinepubs/...99/xbd/re.html

Thanks ... I've been reviewing the web page a little bit - look like a school day's work. :p