ref: 2263bb8f2b654c1d824a0fcb53bb4ffb92de2d2f dir: /sys/src/cmd/postscript/misc/setbaud.ps/
% % Sets baud rate to 9600, options to 0 assuming the password is 0. % serverdict begin 0 exitserver statusdict begin 25 9600 0 setsccbatch end