The error message:

command not found: ^M

Happened to me due to my file having the wrong type of carriage returns in my zshrc.config file. Once I changed my  line endings to ‘\n’ instead of the Windows CRLF line endings the error messages went away 🙂

You can check if a file is using CRLF or LF by using the ‘file‘ command in linux.

$ file what\ lol.txt
what lol.txt: ASCII text, with CRLF line terminators

Error message being fixed: