Berkeley printing system

The Berkeley printing system is one of several standard architectures for printing on the Unix platform.^[1] It originated in 2.10BSD,^{[citation needed]} and is still used to varying degrees in BSD derivatives such as FreeBSD,^[2]^[3] NetBSD,^[4] OpenBSD,^[5] and DragonFly BSD.^[6]^[7] A system running this print architecture could traditionally be identified by the use of the user command lpr as the primary interface to the print system, as opposed to the System V printing system lp command.^[1]^[8]^[9]

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Typical user commands available to the Berkeley print system are:

lpr — the user command to assign a job to the print queue^[1]^[8]
lpq — shows the current print queue^[1]^[8]
lprm — deletes a job from the print queue^[1]^[8]

The lpd program is the daemon with which those programs communicate.^[1]

These programs support the line printer daemon protocol, so that other machines on a network can submit jobs to a print queue on a machine running the Berkeley printing system, and so that the Berkeley printing system user commands can submit jobs to machines that support that protocol.^[1]^[10]

Berkeley printing system

References

See also

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