screen: Scrollback
12.1.2 Scrollback
-----------------
To access and use the contents in the scrollback buffer, use the 'copy'
command. Copy.
-- Command: defscrollback num
(none)
Same as the 'scrollback' command except that the default setting
for new windows is changed. Defaults to 100.
-- Command: scrollback num
(none)
Set the size of the scrollback buffer for the current window to NUM
lines. The default scrollback is 100 lines. Use 'info' to view
the current setting.
-- Command: compacthist [state]
(none)
This tells screen whether to suppress trailing blank lines when
scrolling up text into the history buffer. Turn compacting 'on' to
hold more useful lines in your scrollback buffer.