Very simple regex

[Paul Howarth]

On Wed, 2005-06-08 at 10:41 -0400, |TF20|Shockwave wrote:
> ----- Original Message ----- 
> From: "Dotan Cohen" <dotancohen at gmail.com>
> To: "For users of Fedora Core releases" <fedora-list at redhat.com>
> Sent: Wednesday, June 08, 2005 9:11 AM
> Subject: Very simple regex
> 
> 
> > Now, I know that this is easy, but I am embarassed to say that I can't
> > find a regex tutorial that will show me how to match any occurances of
> > x and replace them with one x:
> >
> > xxxxx >x
> > xx > x
> > x > x
> >
> > $string="I have xxxxxxxx apples!";
> > $string=preg_replace("-regex here-","x", $string);
> > print "$string";
> >
> > I have x apples!
> >
> 
> In Perl:
> $string =~ s/x+/x/g;
> 
> If you are looking to do this against a text file name sample.txt:
> 
> sed -e 's/x\+/x/g' sample.txt

Or even:

tr -s x < sample.txt

Paul.
-- 
Paul Howarth <paul at city-fan.org>