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(screen.info)Break

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Break
=====

 - Command: break [duration]
     (none)
     Send a break signal for DURATION*0.25 seconds to this window.  For
     non-Posix systems the time interval is rounded up to full seconds.
     Most useful if a character device is attached to the window rather
     than a shell process (Note: Window Types). The maximum duration
     of a break signal is limited to 15 seconds.

 - Command: pow_break
     (none)
     Reopen the window's terminal line and send a break condition.

 - Command: breaktype [tcsendbreak|TIOCSBRK|TCSBRK]
     (none)
     Choose one of the available methods of generating a break signal
     for terminal devices. This command should affect the current
     window only.  But it still behaves identical to `defbreaktype'.
     This will be changed in the future.  Calling `breaktype' with no
     parameter displays the break setting for the current window.

 - Command: defbreaktype [tcsendbreak|TIOCSBRK|TCSBRK]
     (none)
     Choose one of the available methods of generating a break signal
     for terminal devices opened afterwards. The preferred methods are
     `tcsendbreak' and `TIOCSBRK'. The third, `TCSBRK', blocks the
     complete `screen' session for the duration of the break, but it
     may be the only way to generate long breaks. `tcsendbreak' and
     `TIOCSBRK' may or may not produce long breaks with spikes (e.g. 4
     per second). This is not only system dependant, this also differs
     between serial board drivers.  Calling `defbreaktype' with no
     parameter displays the current setting.