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So, I've been trying to install zsh. It didn't work properly, after terminal restart, so I decided to change the shell again by typing chsh -s /bin/zsh, once again, but accidentally preceded that with sudo. Now if I type sudo 'anything' or su -, there appears an empty new line, with nothing I can do (nor the Ctrl+C nor the Ctrl+D do not help). What can I do to restore everything back to default? This is MacOS X 10.13

  • Could you post, please, output of the command: echo $SHELL – Bob Jul 23 '18 at 6:58
  • @Bob it’s /bin/bash – Egor Alimpiev Jul 23 '18 at 8:46
  • @Bob the user’s shell is okay. it’s the sudo that does not work, after trying all commands from the answer. I’ll try to post the picture – Egor Alimpiev Jul 23 '18 at 8:55
  • @Bob sorry, the computer is not mine, so no proper screenshots. imgur.com/vjiMl5J – Egor Alimpiev Jul 23 '18 at 9:00
  • OK, I see. My answer below is useless, I'm hiding it temporarily. Please, execute sudo date, press Enter key and wait up to 10-15 minutes. Has the password prompt appeared with some delay? – Bob Jul 23 '18 at 10:40
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Adding sudo to your command should cause no problems unless the command was initially forbidden. The chsh command wants a password anyway. Using sudo may change the root shell but sudo should still work as before. If you are having problems I'd close the terminal and open a new one.

  • chsh won't ask for a password if you're running as root. – roaima Jul 28 '18 at 21:53
  • yea sorry.. i should have included that. – jmh Jul 28 '18 at 22:11

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