I'm trying to run the following command in Terminal:
chown -R couchdb:couchdb /usr/local/var/log/couchdb
However, I keep getting this message:
chown: couchdb: illegal group name
I am using mac osx (mountain lion) and I have command line tools installed. I really don't know very much about unix, but I've been googling the illegal group name error and haven't turned up anything that would help. What am I overlooking? Any additional resources you think might be helpful also appreciated.
illegal group name actually means that the group you're specifying (the couchdb after the colon -- the first couchdb is the user) doesn't exist. You need to either create the group, stop specifying a group, or specify a group that exists.
Try using just the owner if no group.
sudo chown -R user: /usr/local/var/log/couchdb
来源：https://stackoverflow.com/questions/15980675/chown-illegal-group-name-mac-os-x