ESC followed by UP-arrow cause bash shell to hang

Wayne Davison
Sun Jan 7 02:05:00 GMT 2018

On Sat, Jan 6, 2018 at 4:49 PM, Jim Reisert wrote:
> [...] ESC followed by UP-arrow.  This seems to lock up the
> bash shell for about 30 seconds before control returns.

Your up-arrow is probably a character sequence that starts with an Esc
(you can verify that by typing a Ctrl+V followed by your up-arrow key
and bash will show you something like "^[[A"). So, the issue is that
Esc Esc is usually the completion command like pressing Tab. In
command position, bash will churn through all your path dirs and then
then it will typically ring the bell to tell you that the completion
is not unique (hit Esc Esc again to get a list).


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