On 09/20/2011 12:33 PM, ed wrote:
Gave that a go today on a vanilla xargs and it doesn't seem to work:
$ perl -e 'for(my $a=0;$a<100;$a++){print $a,"\n";}' | xargs -l2 sh -c
'sleep 1&&exec /bin/echo "$@"'
1
3
5
^C
For whatever reason the shell seems to throw the first argument away.
The first argument becomes $0 to the shell, so you need to inject a
dummy. You meant:
perl -e 'for(my $a=0;$a<100;$a++){print $a,"\n";}' \
| xargs -l2 sh -c 'sleep 1 && exec /bin/echo "$@"' sh
so that your dummy 'sh' provides the proper $0, and the rest of your
arguments are used as you meant.
--
Eric Blake ebl...@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
