— Command: defscrollback num
Same as the
scrollback command except that the default setting
for new windows is changed. Defaults to 100.
— Command: scrollback num
Set the size of the scrollback buffer for the current window to
num lines. The default scrollback is 100 lines. Use C-a i
to view the current setting.
— Command: compacthist
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.