The title mostly says it all on this one, but it seems that doveadm user has unique behaviour when a wildcard username is given, causing it to return a list of matching usernames in place of regular output, ignoring other command line options such as the -f (field) option.
For example, I had hoped to use the following command in a script to easily get a list of all user home locations (excluding local users): doveadm user -f home *@* However the results are a list of usernames, rather than a list of home locations as I had hoped. I’ve tagged this thread as Bug/Enhancement as outputting a list of matched usernames is clearly the intended behaviour, but it could certainly be clarified, as could the fact that the -f option is ignored in this special case. I think that the correct “fix” here is to clarify in the documentation that wildcard matching is a separate use-case of this command in which the -f (and possibly other?) options are ignored and the results are always given as a list of matching usernames. It needs to be clear that doveadm user u...@domain1.tld u...@domain2.tld and doveadm user *@* are not equivalent, even if those are the only two users, as this differs from many other unix commands where wildcards are permitted, e.g- using rm with a wildcard is equivalent to adding all matching files to the command yourself. However, in future I’d like to see support for the -f option with wildcard matches as well, with -f user simply being the default. This would be much easier for a script inspecting user home directories, as for now my alternative is to use the wildcard match to get a list of names, then call dovecot user -f home <user> for each one to get their home location, which isn’t nearly as nice =) - Haravikk
