It has been suggeted to configure a telnet/sshd/rlogin kind of 
was to let people login to z/OS UNIX.

If you ever need to run an shell throught TSO - OMVS you can still 
send those "special characters" like ctrl-c, ctrl-z, etc to a running 
foregroung process. Here is how and why this is so "complicated":

When logged in through TSO, you're logged in using "3270 data stream". 
This protocol does not know about the UNIX special keys like ctrl-c, 
etc. You simply can't type them (there was no CTRL key on real 3270
keyboards). 

The OMVS command processor "invented" a workaround: Send me the so called 
"escape character" followed by a single character and I'll convert these 
two characters into a single "UNIX control character" ans pass that one 
along to the shell.

You define the "escape character" when staring the TSO OMVS command. The 
default is the character that will be shown as "cent sign" (x'4A') if your 
emulator is running with code page 037. (It is shown as "[" on my CP500 
emulator session; it is shown as "Ä" in Germany/Austria with CP273).

To send a ctrl-c, type ¢c (cent-c) and hit enter. Note, however, that 
this will send a "ctrl-c" followed by a "CR" to the shell. If you want 
to avoid the "CR", type ¢c¢ (append another escape character). This will 
send only the "ctrl-c". 

Peter Hunkeler
CREDIT SUISSE

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  • Re: OMVS Hunkeler Peter (KIUK 3)
    • Re: OMVS Hunkeler Peter (KIUK 3)
    • Re: OMVS Mark Zelden

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