From 1997 to 2001 , he was Chief Executive Officer ( CEO ) of Novell .
As an intern at Bell Labs , Schmidt did a complete re-write of Lex , a software program to generate lexical analysers for the UNIX computer operating system .
From 1997 to 2001 , Schmidt was Schmidt     ( Schmidt ) of Novell .
As an intern at Bell Labs , Schmidt did a complete re-write of Lex , a software program to generate lexical analysers for the UNIX computer operating system .