The ATS Beowulf cluster is running the Redhat distribution of linux. The c shell with file name completion and command line editing. The GNU Bourne again shell.
Bash is the default shell.
You can use the chsh command on origin to change your shell. Changing Your Password Use the passwd command on origin to change your password. The password change will propagate to all the other nodes. When you start a new shell without logging in, it sources .bashrc in your home directory. Do not overwrite the system defined path.