Re: How to extract Numbers

On Tue, 20 Dec 2005 12:40:45 +0800, Surya Kiran Gullapalli wrote:

>
> Hi all,
> I've a string like this
>
> AAAxx.yy
> where AAA are letters and xx and yy are numbers. I want to extract xx.yy
> from the string. I'm doing some thing like this.
>
> echo abc12.34 | sed -e 's|^\D*\(\d.*\)|\1|g'
>
> but the result i'm getting is abc12.34 only. Where am i doing wrong ?
>

\D and \d metacharacters are not supported by most seds. However, "ssed"
does support them when -R option present.

ssed -R 's|^\D*\(\d.*\)|\1|g'

Use [0-9] and [^0-9] when you are using other seds instead.
But in your example, you can just delete the leading letters by command:

sed 's/[a-zA-Z]//g'
or:
sed 's/[^0-9]*//'

-- 
Regards,
hq00e



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