It's just been pointed out that instead of:
echo "sid " $(wbinfo --gid-to-sid=$gid)
maybe
echo "user sid= " $(wbinfo --uid-to-sid=$uid)
would be less monotonous, and perhaps even useful.
What's that phrase? Sarcasm will get you anywhere?
Don't read this: Turn off nscd before fiddling with anything even remotely LDAP 'y.