In my spare time this weekend, I am beginning to teach myself how to use Terminal. There is a really nice tutorial that I am using. But it seems to be a little outdated in places. It's not taking into account that tcsh has been replaced with bash in Panther. (I confess I don't entirely understand what that even means, but at the very least it seems to mean that some Terminal-related file names are different. For example, when the tutorial speaks of .tcsh_history, it is now .bash_history. However there are still some tcsh-related things around, so I'm not sure when to substitute bash for tcsh and when to leave things alone. There may not be an easily comprehensible rule of thumb for a noob like me, but at the very least I would like a little guidance with this section of the tutorial: I would like to add these safety features, since I'm new at this at don't want to do anything stupid. But I'm not sure about this .tcshrc file. I don't have one right now. Is it fine to name it this? Should it be .bashrc? Am I making any sense? Help would be much appreciated.