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Beej's Guide to Interprocess Communication

Brian “Beej Jorgensen” Hall

v1.5.4, Copyright © February 9, 2026

1 Intro
2 A fork() Primer
3 Signals
4 Signals Part II
5 Pipes
6 FIFOs
7 File Locking
8 POSIX Message Queues
9 System V Message Queues
10 System V Semaphores
11 System V Shared Memory Segments
12 Memory Mapped Files
13 Unix Sockets
14 More IPC Resources

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