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The default interactive shell is now zsh.
To update your account to use zsh, please run `chsh -s /bin/zsh`.
For more details, please visit https://support.apple.com/kb/HT208050.
(base) Ashutoshs-MacBook-Air:~ ashutoshrudraksh$ 
(base) Ashutoshs-MacBook-Air:~ ashutoshrudraksh$ chsh -s /bin/zsh
-bash: chsh: command not found
(base) Ashutoshs-MacBook-Air:desktop ashutoshrudraksh$ python
-bash: python: command not found
(base) Ashutoshs-MacBook-Air:desktop ashutoshrudraksh$  sudo make install
-bash: sudo: command not found
(base) Ashutoshs-MacBook-Air:desktop ashutoshrudraksh$ echo $PATH
’/usr/local/bin:??

Summary

As you can see I have tried to run the command 

chsh -s /bin/zsh

but I got the error message

chsh:command not found

Also, any simple task I try to perform on the command line is no longer possible, although it did work before. Now I always get the error message

command not found

Is there any problem with the path or shell default? Any help is appreciated.

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1 Answer 1

Reset to default
1

You have somehow managed to set your PATH to a strange value.

The default PATH on a macOS system:

$ getconf PATH
/usr/bin:/bin:/usr/sbin:/sbin

chsh is located in /usr/bin:

$ command -v chsh
/usr/bin/chsh

You should revisit your shell's initialization files to see what you have done to mangle the value of PATH.

You should still be able to use chsh, but unless you correct your PATH variable's value, you will have to give the full path to the utility:

/usr/bin/chsh -s /bin/zsh
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  • please guide me with the above steps . are you willing me to run the commands on my mac as you shown above. Commented Apr 9, 2020 at 9:42
  • @iron_fist The first two commands that I show are just included to underline my text. The first one shows what the default value of PATH is and the second shows where chsh is located. You should correct your shell's initialization files (where it sets PATH), because you have some code in there that sets an invalid value. The last command shows how you may use chsh without correcting that error. Commented Apr 9, 2020 at 9:46
  • can i run the last command of yours directly without changing the path Commented Apr 10, 2020 at 18:56
  • but i am getting the error [chsh: no changes made] inside the terminal Commented Apr 10, 2020 at 18:57
  • @iron_fist 1) Yes, if you give the full path to the command. 2) Then your login shell has already been changed to the shell you specified with chsh. Commented Apr 10, 2020 at 19:04

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