On 08/18/2014 07:34 PM, Peng Yu wrote: > Hi, > > The following shows that echo does not following the "getopt" > convection. Is it better to make all bash internal command following > the getopt convention?
No, that would break backward compatibility. > > ~$ echo -n > ~$ echo -n -n > ~$ echo -n -- -n # I think that the output should just be "-n" not "-- -n". > -- -n~$ For that matter, POSIX requires this to output "-n -- -n", since POSIX does not allow for echo to interpret -n. In fact, if you do 'shopt -s xpg_echo', then you get full POSIX behavior. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
signature.asc
Description: OpenPGP digital signature
