Re: [MLUG] Vi Regex problem

[Mike Miller <EMAIL:PROTECTED>]

On Fri, 5 Apr 2002, Scott Hussey wrote:

> On Thu, Apr 04, 2002 at 11:31:29PM -0600, Mike Miller wrote:
> > > Try somethinglike s/,([A-Z])/,"$1/g
> > >
> > > The parantheses (sp?) are a grouping operator and tell vi
> > > to assign whatever matches the pattern inside them to the next
> > > group variable ($1, $2, $3, ...) The $1 of course then references
> > > the first grouping from the matching part of your re.
> >
> >
> > Do you know if this can also be done somehow in sed?  I thought there
> > was a correspondence between vi and sed on this sort of thing but I
> > couldn't get sed to do this.
>
> Not sure, most of my regex experience comes from perl which uses egrep
> like regex's. Not sure how sed's regex support differs.


Oh, thanks, just tried it in perl instead of sed and it works beautifully!
I didn't know about this before and it is very helpful.  Basic idea for
those not familiar, these two do basically the same thing:

sed 's/search/replace/g' filename
perl -e 's/search/replace/g' -p filename

Mike

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