c3270(1) on Linux
The text dacbf322574c, as Debian 10 (Buster) shipped it.
curses-based IBM host access tool
Flags it lists
-
-accepthostname -
-allbold -
-altscreen -
-cbreak -
-chainfile -
-defaultfgbg -
-defscreen -
-mono -
-noprompt -
-noverifycert -
-nvt -
-printerlu -
-proxy -
-reconnect -
-rv -
-scriptportonce -
-secure -
-socket -
-trace -
-utf8 -
-v -
-verifycert