What is display variable in Linux?

The DISPLAY variable is used by X11 to identify your display (and keyboard and mouse). Usually it’ll be :0 on a desktop PC, referring to the primary monitor, etc. … when running under the X Window server on the same host. Big numbers like in :1001 are typical for SSH passed X connection.

What is display command Linux?

screen command in Linux provides the ability to launch and use multiple shell sessions from a single ssh session. When a process is started with ‘screen’, the process can be detached from session & then can reattach the session at a later time.