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6.2 Screen Command

— Command: screen [opts] [n] [cmd [args]]

(C-a c, C-a C-c)
Establish a new window. The flow-control options (‘-f’, ‘-fn’ and ‘-fa’), title option (‘-t’), login options (‘-l’ and ‘-ln’) , terminal type option (‘-T term’), the all-capability-flag (‘-a’) and scrollback option (‘-h num’) may be specified with each command. The option (‘-M’) turns monitoring on for this window. The option (‘-L’) turns output logging on for this window. If an optional number n in the range 0...9 is given, the window number n is assigned to the newly created window (or, if this number is already in-use, the next available number). If a command is specified after screen, this command (with the given arguments) is started in the window; otherwise, a shell is created.

Screen has built in some functionality of ‘cu’ and ‘telnet’. See Window Types.

Thus, if your .screenrc contains the lines

     # example for .screenrc:
     screen 1
     screen -fn -t foobar 2 -L telnet foobar

screen creates a shell window (in window #1) and a window with a TELNET connection to the machine foobar (with no flow-control using the title ‘foobar’ in window #2) and will write a logfile ‘screenlog.2’ of the telnet session. If you do not include any screen commands in your .screenrc file, then screen defaults to creating a single shell window, number zero. When the initialization is completed, screen switches to the last window specified in your .screenrc file or, if none, it opens default window #0.