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Make certain that a valid shell name is being entered when making the In particular, it is important toįirst test the shell temporarily in the current session and then to It is possible to make an error that only the root user (i.e., systemĪdministrator) can repair (although it should be easy for a skilled

Their password and then for the full path of the desired new shell.Ĭaution should be exercised when changing one's default shell because This results in a brief dialog in which the user is prompted first for Type the following into your terminal: INTERACTIVE METHOD $ chsh There is a interactive methodĪnd non-interactive method. To address your third question, "How do I change the shell used from my account?", the answer is to use chsh.įrom Changing Shells - Changing your login shell which is permanent, and paraphrasing it slightly: Now for the question "How do I change the shell used from my account?" Assuming this means "How do I permanently change the default shell that a terminal will use", there is an answer here. The following command will show you whether any of the listed shells are in fact symbolic links, and if so where they link to: However, by default sh is a symbolic link to dash, while rbash links to bash with the option -r ("restricted bash") so there are actually only two shells, not four as the above list suggests.

To answer "How do I check how many shells are installed?" the following command will list all the available shells: cat /etc/shellsįor example, on a default installation of Ubuntu 18.10 this gives: # /etc/shells: valid login shells The answers given do cover the first question, "When I open a terminal window, which shell is opened by default?" They also answer a question which was NOT asked, namely "How can I find out which shell is currently running in the terminal?" However, as far as I can see nobody has answered either the second or third questions originally asked, namely "How do I check how many shells are installed?" and "How do I change the shell used from my account?"