>From the stty man page:

Optional - before SETTING indicates negation.  An * marks non-POSIX
            settings.  The underlying system  defines which settings are available.

--
gsker

On Wed, 28 Nov 2018, Iznogoud wrote:
[snip]
> OK, so I looked for the rest, especially the "reverse" setting of "tostop".
> There isn't one. All of what I know, and likely all of what exists, is here:
> https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.bpxa400/bpxug212.htm
[snip]