FreeBSD is an operating system which has high security and performance standards.

It is used widely on production servers for companys, due to its reliability

How can i change the tcsh Shell Prompt?

First of all copy an example configuration file to your home directory:

cp /usr/share/skel/dot.cshrc ~/.cshrc

Now edit the config file suitable to your needs:

vi ~/.cshrc

For example your default editor can be changed in this line of this config file:

setenv EDITOR vi

pkg install bash

Bash is easy installable on FreeBSD.