On 03/13/2012 11:03 AM, dethrophes wrote: > > the missing "" in the case isn't redundant.
It is too redundant; you only need "" after case if the parser would
otherwise see two words before in.
> case "$HOME" in
> *[^/]* ) HOME=${HOME%${HOME##*[^/]}} ;;
> / | // ) ;;
> *) HOME=/ ;; # //+(/)
> esac
By the way, one more tweak to make this example POSIX-compliant rather
than relying on a bash extension - shell pattern matching uses ! for
negation and leaves ^ unspecified (as an extension, bash treats ^ as a
synonym for ! in performing negation, but other shells treat ^
literally). Additionally, since POSIX requires tilde-expansion to occur
on the word after 'case', you can write this as:
case ~ in
*[!/]* ) HOME=${HOME%${HOME##*[!/]}} ;;
/ | // ) ;;
*) HOME=/ ;;
esac
--
Eric Blake ebl...@redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
signature.asc
Description: OpenPGP digital signature
