Linux › Section N · The Linux desktop and printing › Topic N.3
D-Bus and printing
Two quiet services hold a Linux desktop together: D-Bus, the message bus that lets programs announce events and ask each other for help, and CUPS, the print system that turns a document into something a printer understands. Both can be inspected and driven from the command line.
In this topic
- Why a message bus?
- Names, objects and messages
- System bus and session bus
- Watching and calling the bus
- Worked example: reading a property over D-Bus
- How printing works
- CUPS and IPP
- Printing from the command line
- Worked example: a job that will not print
- Other desktop topics
- Common mistakes to avoid
- Key takeaways
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