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.

Abstract: A method of expanding a command line comprising at least one command word and word separators delineating the at least one command word is presented. A trigger to expand the command line is detected, and upon detection of the trigger, a current cursor position within the command line is determined. From the current cursor position, a particular command word that is currently being edited is determined. The last characters of a particular command word is deleted from the cursor position onwards, thereby yielding a particular truncated command word. A match for the particular truncated command word is found in a command word database, and the particular truncated command is completed according to the match.