Re: [bug] Home dir in PS1 not abbreviated to tilde

[Eric Blake]

On 03/13/2012 09:27 AM, Eric Blake wrote:
> Be aware that both approaches will misbehave if HOME is a root directory
> (/ or //), where you _don't_ want to strip trailing slashes.  So you
> really want:
> 
> case $HOME in
>   *[^/]* ) HOME=${HOME%${HOME##*[^/]}} ;;
> esac

Actually, shortening /// to / is okay (it's only // that must not
unconditionally be shortened to /, due to POSIX specification and Cygwin
behavior of //), so a modified version would be:

case $HOME in
  *[^/]* ) HOME=${HOME%${HOME##*[^/]}} ;;
  / | // ) ;;
  *) HOME=/ ;;
esac

-- 
Eric Blake   eblake@redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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