On 04/04/2011 11:37 AM, Michele Marigliano wrote:
> At end, I resolved it running the script in this way:
> ./script.sh
> and NOT
> . script.sh (my first run with error).

There is a large difference between sourcing a file in the current shell
(. script.sh, where $0 remains unchanged) and executing a script
(./script, where $0 changes to the script name); and as you discovered,
there are a large number of scripts that are not usable when sourced
instead of run as a script.

At any rate, glad to hear that you got things sorted out.

-- 
Eric Blake   eblake@redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org