Check out your environment

1.

When you log in to your UNIX account, the system creates an environment for you and initializes a set of environment variables. These variables are used by various programs to control their behavior. For example, the PRINTER environment variable tells programs the name of the default printer.

2.

Type printenv to see the environment variables the system has set for you. To change an environment variable, use setenv. For example, if you are in the Mudd Lab, you probably want to setenv PRINTER muddlab. In the Schupf Lab, setenv PRINTER HP.

3.

If you set the PRINTER environment variable, you can omit the -P option when you run lp or lpr.