Hamish Downer edited this page Feb 3, 2013 · 1 revision
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Ctrl-Y in sup will scroll the screen up one line. But Ctrl-Y may be gobbled up by your shell and interpreted as a "delayed suspend" signal, returning control to the underlying shell. If you have accidentally pressed Ctrl-Y and find yourself at a shell prompt:


...and you will be returned to your sup session.

To prevent this behavior altogether so that you may use Ctrl-Y for scrolling in sup, add the following line to your .bashrc, .zsh, .profile or equivalent shell startup script:

 stty dsusp undef