An LP session involves at least two programs:
an LP client program
an LP server program.
Depending on the specific functional request, the user will normally use different client programs to communicate with the lpd program. In general, one single lpd program will handle all different user requests.
The actual names and detailed behaviour (program options) of the LPD client programs depend on the host Operating System environment. In general, there are Unix BSD style and Unix System V style systems. For these kinds of systems, the user programs are mostly named as follows:
|
Functionality requested by the user |
System V Unix user program |
BSD Unix user program |
|---|---|---|
|
Submit print jobs |
lp, rlp |
lpr |
|
Cancel print requests |
cancel |
lprm |
|
Display status |
lpstat |
lpq |
Also the LP server programs often have different names in System V and BSD Unix environments:
|
System V Unix server program |
BSD Unix server program |
|
|---|---|---|
|
LPD server programs |
lpsched, lpNet, rlpdaemon |
lpd |
For LP system management and control purposes, the host system normally offers specific commands for the system administrator. These commands are local to the host system, and are of no direct need while printing to the Océ VarioPrint 6000 Series.
|
System V Unix |
BSD Unix |
|
|---|---|---|
|
LP management and control |
lpsystem, lpadmin, enable, disable, accept, reject |
lpc |