You are welcomed and strongly encouraged to send me e-mail, at the address matloff@cs, for help on homework assignments, questions on the lectures, and on any other aspects of the course.
IMPORTANT NOTE: If you send me e-mail asking what to do about some error message, please use the Unix script command to make a complete record of the error and the environment in which it occurred. Run both the command which gave you the error message and run pwd, ls -l and printenv. If you do not know how to run the script command, see
http://heather.cs.ucdavis.edu/~matloff/UnixAndC/Unix/UnixBareMn.html#tth_sEc6