Re: echo ^C

[Chet Ramey]

> Within the bash-completion testsuite, we're trying to synchronize in
> between test cases using the string "^C", output by bash on receiving a
> SIGINT.
> This works fine for bash >= 4 (typing ^C is echoed as "^C"), but on
> bash-3 typing ^C is echoed as a newline.  Is there a setting to make
> bash-3 echo "^C" then typing ^C, just like bash-4?

That capability (readline echoing the key that generated a signal if the
ECHOCTL bit was set with stty) was not added until bash-4.0.  It's a
settable variable in bash-4.1, so you may not want to rely on it.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/