【Ubuntu 24.04】Tab補完で快適に！zsh導入とシェル切り替え手順を解説

sudo apt update
sudo apt install -y zsh

sudo chsh -s /usr/bin/zsh test
sudo chsh -s /usr/bin/zsh root

test@ubuntu:~$ getent passwd test
test:x:1000:1000:test:/home/gumio:/usr/bin/zsh
test@ubuntu:~$ getent passwd root
root:x:0:0:root:/root:/usr/bin/zsh

This is the Z Shell configuration function for new users,
zsh-newuser-install.
You are seeing this message because you have no zsh startup files
(the files .zshenv, .zprofile, .zshrc, .zlogin in the directory
~).  This function can help you with a few settings that should
make your use of the shell easier.

You can:

(q)  Quit and do nothing.  The function will be run again next time.

(0)  Exit, creating the file ~/.zshrc containing just a comment.
     That will prevent this function being run again.

(1)  Continue to the main menu.

(2)  Populate your ~/.zshrc with the configuration recommended
     by the system administrator and exit (you will need to edit
     the file by hand, if so desired).

--- Type one of the keys in parentheses --- 2 ←入力
/home/gumio/.zshrc:15: scalar parameter HISTFILE created globally in function zsh-newuser-install
(eval):1: scalar parameter LS_COLORS created globally in function zsh-newuser-install
test@ubuntu ~ %

test@ubuntu ~ % ip addr

test@ubuntu ~ % ip addr
Completing ip command
addrlabel  -- manage addrlabel
addr       -- manage protocol address

sudo chsh -s /bin/bash test
sudo chsh -s /bin/bash root

echo $SHELL

getent passwd test
getent passwd root

exec bash -l
exec zsh -l