[RndTbl] Oh great RE master

Steve Moffat Steve.Moffat at ca.ibm.com
Wed May 9 14:52:36 CDT 2007

Hi All;
I've been trying to write a sed function to return only a numeric portion
of a string, but can't seem to get it working.
The input is a single string of letters and numbers, with the numbers
always consecutive.
For example:  BUILD-AM005-a

I want to get the 005 out of this string.

echo  BUILD-AM005-a | sed 's/.*\([[:digit:]]\).*/\1/g'

will return the digit 5.  This is good!

So I add an asterisk to try to match multiple digits like:
echo  BUILD-AM005-a | sed 's/.*\([[:digit:]]*\).*/\1/g'

and instead of returning 005, it doesn't match anything, so returns

Can any of you RE maters help me out?

Steve Moffat
IBM Global Services
sjm at ca.ibm.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.muug.mb.ca/pipermail/roundtable/attachments/20070509/99f92c04/attachment.html

More information about the Roundtable mailing list