Understanding the Display Environment Variable

As you'll see in the next few sections, the DISPLAY environment variable tells X Window system applications which device they should contact in order to display their output. In most cases, you won't have to set this variable because the default is always your local machine. However, in general, the DISPLAY environment variable is declared using a command such as the following The displayname specification uses the following form When specifying a DISPLAY, hostname specifies the machine on...