Binary package “s3270” in ubuntu precise
Program for scripted telnet sessions to IBM mainframes
s3270 opens a telnet connection to an IBM mainframe host, then allows a
script to control the host login session.
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s3270 implements RFCs 2355 (TN3270E), 1576 (TN3270),
and 1646 (LU name selection), and supports IND$FILE file transfer.