Hi all, I wrote application/pdf; vinurs-pdf %s ; in my .mailcap file, vinurs-pdf is a function that can open pdf files; In zsh configuration file: # MIME system autoload -U zsh-mime-setup zsh-mime-setup then in zsh, I can open pdf files, but ,when I mv test.pdf to test.pdf.bk, It can not be opened. I use file --mime-type test.pdf.bk, It shows: test.pdf.bk: application/pdf Why this happens? How can I configure that zsh can open test.pdf.bk files.