Source : Free On-Line Dictionary of Computing

Steve's Shell
     
         (ssh) A {Unix} {shell} with many {csh}- and
        {ksh}-like features, by Steve Baker 
        and Thomas Moore.
     
        Version 1.7 has been ported to {Sequent}, {Sun}, {NeXT},
        {Ultrix}, {BSDI} and is available from {comp.sources.unix}
        volume 26.
     
        (1993-04-15)