=over =item IO::Handle->output_field_separator EXPR =item $OUTPUT_FIELD_SEPARATOR =item $OFS =item $, The output field separator for the print operator. Ordinarily the print operator simply prints out its arguments without further adornment. To get behavior more like B, set this variable as you would set B's OFS variable to specify what is printed between fields. (Mnemonic: what is printed when there is a "," in your print statement.) =back