Not Matching Records

Option 'v' --> Output Only Records Not Matching. In some instances the user desires to use QTGrep as a 'filter' to find all records NOT WANTED. In these cases, the records containing NO MATCHES to search patterns are the records desired. To achieve this, this option should activated. For example, to duplicate a file and eliminate all blank records, the following Regular Expression could be used in conjunction with this option:

^{_w}*$

The behavior of this option may be achieved with the 'r' option also. By using the '#nr' or '#dr' operators to null or delete records respectively, selected records may be nulled deleted with the 'r' option. Also, the 'r' option allows more selectivity in which records are deleted and the file for the output. Also, the 'r' option allows records to be nulled and just deleted.

Incompatible Options Are:

W	Write Compiled Search Patterns
Z	File Preview