Binary package “tcl3270” in ubuntu jammy

Program for Tcl-scripted telnet sessions to IBM mainframes

 tcl3270 opens a telnet connection to an IBM mainframe host, then allows a
 Tcl script to control the host login session.
 .
 tcl3270 implements RFCs 2355 (TN3270E), 1576 (TN3270),
 and 1646 (LU name selection), and supports IND$FILE file transfer.