grep, etc

[Bob Stockler]

On Thu, Aug 19, 2004 at 10:46:32AM -0400, Bill Vermillion wrote:
| On Wed, Aug 18 11:38 , Jay R. Ashworth, showing utter disregard for 
| spell-checkers gave us this: 
| 
| > On Wed, Aug 18, 2004 at 01:17:23AM -0400, Brian K. White wrote:
| > > Jay R. Ashworth wrote:
| > > > On Tue, Aug 17, 2004 at 11:08:11PM -0400, Brian K. White wrote:
| > > >> Fairlight wrote:
| > > >>> Sweet.  I should grab that.  :)  Basically a -useful- egrep.  :)
| > > >>> Well, egrep is useful, but not as useful as it otherwise could be.
| > > >> 
| > > >> I'd say the plain old stock sco grep was useful, since it aswered
| > > >> the need very directly in one command without especially exotic
| > > >> options or a pipeline. Didn't even require the stock egrep let alone
| > > >> gnu grep or pcregrep.
| > > > 
| > > > Well, except that it *didn't* fulfill the requirement of the poster
| > > > who started this thread, without a big ungainly pipline wrapped
| > > > around it. 
| > > 
| > > What are you talking about?
| > > 
| > > The stated request was:
| > > 
| > > sample data:
| > > ISA*00000089** *
| > > CLM*inv123456*a*b*c         -213
| > > SV1*23456*25*A*B            -214
| > > 
| > > I want to be able to view a range of lines, ie: from -213 to -216
| > > 
| > > In what way does this fail to meet that request?
| > > grep '-21[3-6]$' file
| > 
| > Well, in the *exact* instance he used as an example, it would work.
| 
| > But what happens if he wants -213 through -226?
| 
| grep '-2[12][3-6]$' file  :-)

How does that match -217, -218, -219, -220, -221 and -222 ???

| Those constructions get ugly as they get larger, don't they.
| 
| Of course if the target is not of fixed length it fails miserably.

What does fixed length have to do with matching string at the
end of a line?

Bob

-- 
Bob Stockler - bob at trebor.iglou.com
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