Re: Regular Expressions from Bash Shell

[Christopher Faylor <cgf-no-personal-reply-please at cygwin dot com>]

On Wed, Sep 01, 2004 at 06:07:15PM -0400, Buchbinder, Barry (NIH/NIAID) wrote:
>At Wednesday, September 01, 2004 5:17 PM, Igor Pechtchanski wrote:
>> On Wed, 1 Sep 2004, Siegfried Heintze wrote:
>> 
>>> I want to use grep on all the FORTRAN source code files in the
>>> current directory whose file names do not contain a "_" character.
>>> How do I do this? 
>>> 
>>> I'm using the extension of ".f" to designate FORTRAN.
>> 
>> Disclaimer: this is not a shell programming support forum, and the
>> above post is off-topic for this list, since it asks a general shell
>> question not related to Cygwin.
>> 
>> But, since I'm sending this e-mail anyway (and I hope this in no way
>> encourages similar future posts):
>> 
>> find . -name \*_\* -o -name \*.f -print | xargs grep EXPRESSION
>
>I think a "!" was forgotten.
>
>find . \( ! -name \*_\* \) -o -name \*.f -print | xargs grep EXPRESSION
>
>The parentheses may not be needed -- you can try it both ways.

I don't think either of those meets the letter of the original request.

If you only want the files in the current directory then something like:

ls -d *.f | grep -v '^_' | xargs grep EXPRESSION

should work better.

Or if you use zsh you can just do:

grep EXPRESSION *.f~_*

cgf

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