I think I need a null character in the file. According to HPUX documentation, a key press of ctrl-shift-@ represents a null character with nothing being displayed. When using vi and replacing a...
I have been using OKI data Microline printers; models 590 and 591 to print a bar code using the following escape sequence:
\E^PA^H^C00^D^C^A^A^A\E^PB^H
The escape sequence is stored in a unix file...