Subject: Ambiguous output redirection

(This message is being sent to all CPSC 360 students)

If you get this message while trying to run the program
as instructed,  it means that you are presently using one
of the C-shell variants (csh, tcsh, etc.) These shells
don't have a way to split stdin and stderr.

The solution is to enter the command

bash

which put you into the bash shell and then run your program.
When done, if you want to go back to your original shell
enter the command

exit