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From: Peng Yu <pengyu.ut@gmail.com>
Newsgroups: gnu.bash.bug
Subject: difference between /tmp and other directory for loadable mkdir?
Date: Wed, 26 Dec 2018 12:40:09 -0600
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Hi,

I can not mkdir -p . in /tmp/ via the loadable mkdir. What is the
difference between /tmp/ and other directories? I am on Mac OS X. Is
this a bug in mkdir?

$ cd /tmp
$ mkdir -p -- .
-bash: mkdir: .: Operation not permitted
$ cd ~/
$ mkdir -p -- .

-- 
Regards,
Peng