My terminal is frozen with completed process

If you are suggesting that launching the Terminal immediately produces the process completed message in it, then you have a Shell startup file with an exit command in it.

If that is the case, quit the Terminal and open a new Finder Window on your home directory. Make a new folder and name it Dotfiles. Then press shift+cmd+. to reveal the hidden files in your home directory.

If you are still using the Bash shell, look for and move the following dotfiles into the Dotfiles folder:

• .bashrc
• .bash_profile
• .bash_login
• .bash_logout
• .profile

and the Zsh shell:

• .zshrc
• .zshenv
• .zlogin
• .zprofile

Now, launch Terminal again and see if it generates the process completed message.

If you press control+D or type exit in the Terminal, you will likely get the process complete message and then you will need to quit the Terminal and relaunch it. That is the expected behavior with those specific inputs. You do not want any exit command in your Shell dotfiles as the same result will occur.

My Terminal is configured to close the Terminal window (but not quit Terminal) when these are entered. This sets one up to open a new Terminal window from its Shell menu, or simply quit the application.

Don't forget that at the Terminal level, you are exposed to a UNIX operating system and the behaviorisms of Bash, Zsh, or in some cases, Ksh shells.

Depending upon the Shell you are using for the Terminal, it is odd that you did not find any of the above files prefaced with a dot (.) which makes them hidden in UNIX (and the Finder). They may not by default all be present. You did select shift+cmd+i in a Finder Window with your home folder selected?

Are you also using a package manager (e.g. homebrew, MacPorts, npm)? One has to be careful about packages shoving stuff into the Shell dotfiles.