Filter::tee - tee source filter

       Paul Marquess

       20th June 1995.

perl v5.40.0                                       2024-11-17                                           tee(3pm)

       This filter copies all text from the line after the "use" in the current source file to the file
       specified by the parameter "filename".

       By default and when the filename is prefixed with a '>' the output file will be emptied first if it
       already exists.

       If the output filename is prefixed with '>>' it will be opened for appending.

       This filter is useful as a debugging aid when developing other source filters.

       Filter::tee - tee source filter

           use Filter::tee 'filename' ;
           use Filter::tee '>filename' ;
           use Filter::tee '>>filename' ;