Is ./*/ portable?
问题 I often use ./*/ in a for loop like for d in ./*/; do : # do something with dirs done to match all non-hidden directories in current working directory, but I'm not really sure if this is a portable way to do that. I have bash, dash and ksh installed on my system and it works with all, but since POSIX spec doesn't say anything about it (or it says implicitly, and I missed it) I think I can't rely on it. I also checked POSIX bug reports, but to no avail, there's no mention of it there as well.