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Taking Command of the Terminal with GNU Screen

Feb 12, 2010, 09:03 (2 Talkback[s])
(Other stories by Joe 'Zonker' Brockmeier)

"GNU Screen is one of the most useful utilities you can have at your disposal if you spend any time at all working at the command line. Screen allows you to manage multiple shell sessions from one terminal window or console, view multiple shell sessions at the same time, and even log into the same session from more than one location at a time.

"The screen utility is a "window manager" that allows you to organize and work with multiple shell sessions in a very powerful way. Utilizing screen, you can manage shell sessions in all kinds of useful ways. This tutorial will show you how to display two or more sessions simultaneously in the same window, "detach" from a session and log in later, and even log into the same session from more than one system.

"One note about the commands shown in this tutorial: They are case-sensitive, so Ctrl-a S is not the same as Ctrl-a s. Also, GNU Screen runs on a lot of platforms. This tutorial specifically focuses on newer releases of Screen found on modern Linux releases such as openSUSE 11.2 and Ubuntu 9.10. If you're running an older Linux release or using Screen on Mac OS X or another Unix-based system, some behavior may be different. For example, Mac OS X Snow Leopard ships with Screen 4.00.03, which is a bit on the older side compared to Screen on the version shipping with modern Linux distros.

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