s3270(1) on Linux
The text 54c8895dcf19, as Debian 11 (Bullseye) shipped it.
IBM host access tool
Flags it lists
-
-accepthostname -
-cadir -
-cafile -
-certfile -
-certfiletype -
-chainfile -
-clientcert -
-noverifycert -
-nvt -
-proxy -
-scriptportonce -
-socket -
-trace -
-utf8 -
-v -
-verifycert