l i n u x - u s e r s - g r o u p - o f - d a v i s
Next Meeting:
July 7: Social gathering
Next Installfest:
Latest News:
Jun. 14: June LUGOD meeting cancelled
Page last updated:
2001 Dec 30 16:59

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

Report this post as spam:

(Enter your email address)
Re: [vox-tech] some excercise for you linux geek.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] some excercise for you linux geek.

On Thu, Dec 07, 2000 at 04:48:10PM -0800, Mark Kim wrote:
> On Thu, 7 Dec 2000, Micah Cowan wrote:
> > The backslashed-escaped characters {, }, (, and ) would all lose their
> > special meanings in a regex.
> Actually, it depends on the regex interpreter.  As I recall, in PERL, you
> use (...) to represent a group of characters that need to be remembered
> for later recalling.  Under sed, \(...\) is used to do the same.  (Perl
> also uses $1 instead of \1 for recalling, doesn't it?)

Both, actually, but $1 is preferred (because anything higher than \9 won't

> If you don't put the backslashes in front of ( or ), you match the
> parenthesis characters, I think.  The same *seems* to be true for curly
> braces... on Sed, anyway.

Ah, I see.  In Perl it's the reverse.

> -Mark (still a trial-and-error regex user...)

LUGOD Group on LinkedIn
Sign up for LUGOD event announcements
Your email address:
LUGOD Group on Facebook
'Like' LUGOD on Facebook:

Hosting provided by:
Sunset Systems
Sunset Systems offers preconfigured Linux systems, remote system administration and custom software development.

LUGOD: Linux Users' Group of Davis
PO Box 2082, Davis, CA 95617
Contact Us

LUGOD is a 501(c)7 non-profit organization
based in Davis, California
and serving the Sacramento area.
"Linux" is a trademark of Linus Torvalds.

Sponsored in part by:
Appahost Applications
For a significant contribution towards our projector, and a generous donation to allow us to continue meeting at the Davis Library.