On Wed, 11 Feb 2009, Giorgos Keramidas wrote: > On Wed, 11 Feb 2009 21:47:17 +1100 (EST), Ian Smith <smi...@nimnet.asn.au> > wrote: > > I'm getting nowhere trying to parse out IP addresses from strings of > > this form in /bin/sh, which have been awk'd out of 'tail named.run': > > > > addr='195.68.176.4#1440:' > > addr='195.68.176.4#16811:' > > addr='195.68.176.4#276:' > > > > sh(1) in hand, I've tried: > > > > ip=${addr:%#*} > > ip=${addr:%%#*} > > ip=${addr:%[#]*} > > ip=${addr:%%[#]*} > > > > but all of these report './testbit: 7: Syntax error: Bad substitution' > > > > How can I split these strings to exclude the '#' and all beyond, > > preferably using sh syntax, at least without resorting to perl? > > Remove the ':' part and quote the text to avoid parsing '#' as a comment > delimiter: > > $ addr='195.68.176.4#1440:' > $ echo "${addr%#*}" > 195.68.176.4
Thankyou Giorgos, just before yours arrived I'd twigged that the ':' was wrong there, and tried ip=${addr%#*} which worked fine. I guess # within ${..} doesn't get taken as a comment .. which makes sense or these would always need to be double-quoted. cheers, Ian _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"