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RE: command line editing w/ the new 2.4 kernel

> What happened to being able to use the arrow keys to do command line
> editing?
> Even !! doesn't work for recalling the last line.
> Is there any way to at the very least recall the previous command?

There was actually already support for command line editing and history in ash! Just add hetio.o and hetio.c in the Makefile and add -DHETIO to CPPFLAGS. It's simple but it works (and costs just a few kB).