>ESC=¢
>
>But I have no idea where the ¢ key is nor how to stop it.

Don't you have the cent sign key on your keyboard? The "ESC"
in TSO OMVS is somewhat special.  There is no way of sending
Ctrl-c (or any other control key) to the shell because 3270
simply does not support them. OMVS' workaround is the "ESC"
character. Type this (the ¢) directly folloed by the letter
representing the control-sequence you want to send (e.g. Ctrl-c)
and press enter. OMVS will translate the two characters "¢c"
to a single Ctrl-c and sends this to the shell.

So ¢c + <enter> should occasionally cancel your long running 
ls command. Note, however, that it might not work so immediately
as it would in a telnet shell session. This is because OMVS
buffers lines it receives from the shell and updates the 3270
display regularly, in the long running ls case, whenever it
has buffered a screen full of data. With this concept, the 
ls might already have sent a bunch of lines to the OMVS buffer
which have not yet been displayed. OMVS will continue to to
empty the buffer even after the shell has cancelled the ls
due to the ctrl-c.

If the ¢-sign is inconvenient for you, you can change it
upon OMVS invocation using the ESCAPE('...') parameter

--
Peter Hunkeler
Credit Suisse

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