对非 root 用户使用终端快捷方式

Question

I have added a non-root user to my Linux os to use it for my daily needs. However, I am not able to use shortcuts I am used to.

To use my previous codes I normally press UP or DOWN button on my keyboard. Now with a non-root user, it shows

$ ^[[A  // When I press UP arrow
$ ^[[B   // or DOWN arrow and so on...

Why a nonroot user cannot use shortcuts and how can I use them

Answer 1

Looks your default shell is not bash. You can check it by running (when not root)

echo $SHELL

or

ps -p `echo $$`

My best guess it is ksh.

You don't have to use bash - but is used by most people as it is most user friendly and should be available for all distros.

There are other shells - ksh, csh, tcsh, zsh or fish. Last two are nice alternative to bash.