Boolean
The Unixre switch determines if PWB uses UNIX regular-expression syntax or PWB's non-UNIX regular-expression syntax for search-and-replace commands.
The Unixre and Case switches have no effect on the syntax of regular expressions used by the Build and Word switches. These switches always use case-sensitive UNIX regular-expression syntax.
Unixre:{ yes | no }
yes
Use UNIX regular-expression syntax when searching.
no
Use non-UNIX regular-expression syntax when searching.
Unixre:yes