VX Search provides a file matching rule capable of searching files containing or not containing a user-specified text pattern.
In order to match files by a text pattern, select the 'Search Files Containing Text' file matching rule, select an appropriate
text matching operator and enter a text pattern to search for.
In addition to the position text matching operator, the file matching rule provides a negative text matching operator capable
of searching files not containing a user-specified text pattern.
