Cygwin's vanilla sed : capabilities and limitations
fergus@bonhard.uklinux.net
fergus@bonhard.uklinux.net
Wed Jul 16 13:30:00 GMT 2003
This is probably a cheat question (non-central Cygwin issue) but it is about
Cygwin's vanilla sed.
AND it is only asked in order eventually to provide anybody interested with
the elegant-est possible script for making a portable Cygwin CD.
Q1. Querying info sed reveals the expression matcher to be "greedy",
matching the longest possible string. Is there a way to make it match the
shortest possible, so that echo aaabbbccc | sed 's/^.*b//' (altered but
similar) grabs aaab not aaabbb?
Q2. Is there a way using the supplied sed without major enhancements to
change "abc x def" to "def x abc": that is, to grab two distinct portions
and swap them (using $1,$2 or \1,\2 or whatever).
Sorry for asking: I know it's a sin: hope the end articulated above
justifies the means.
Fergus
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
More information about the Cygwin
mailing list