Abstract: The present invention relates to a method to expand a command line comprising at least one command word and word separators delineating said at least one command word, which method comprising the steps of: detecting a trigger to expand said command line, determining, upon detection of said trigger, a current cursor position within said command line, determining, from said current cursor position, a particular command word that is currently being edited. A method according to the invention is characterized in that said method further comprises the steps of: deleting last characters of said particular command word located from said current cursor position onwards, thereby yielding a particular truncated command word, finding a match in a command word database for said particular truncated command word, completing said particular truncated command word according to said match, thereby yielding an expanded command line for execution by a command execution unit.

Abstract: The present invention relates to a Software replacement method, for replacing a first software package that comprises a command handling interface which is present at a computer system, by a second software package over a connection between an operator terminal and this command handling interface. At first the second software package is installed besides the first software package at the computer system. Subsequently, the second software package is activated. Then a contacting part of the second software package, after activation of this second software package, contacts the command handling interface. The command handling interface at contacting of the command handling Interface by the contacting part of the second software package, switches from the first software package towards the second software package and keeps open the connection between the operator terminal and the command handling interface.