Keys in the character backend multiplexer
During emulation, if you are using a character backend multiplexer
(which is the default if you are using -nographic) then several
commands are available via an escape sequence. These key sequences all
start with an escape character, which is Ctrl-a by default, but can be
changed with -echr. The list below assumes you’re using the default.
- Ctrl-a h
 Print this help
- Ctrl-a x
 Exit emulator
- Ctrl-a s
 Save disk data back to file (if -snapshot)
- Ctrl-a t
 Toggle console timestamps
- Ctrl-a b
 Send break (magic sysrq in Linux)
- Ctrl-a c
 Rotate between the frontends connected to the multiplexer (usually this switches between the monitor and the console)
- Ctrl-a Ctrl-a
 Send the escape character to the frontend