General topics on UNIX programming

邊找regexec的時候剛好也找到解決opt的問題的網頁：
裏面有regex在C的範例，跟一些 Unix-like下的 programming教學。

http://mij.oltrelinux.com/devel/unixprg/
General topics on UNIX programming
The following entries cover some general programming topics under UNIX:

* Regular expressions
o notes
o summary
o example
* Parsing the command line
o notes
o summary
o examples
* Tasks, fork(), wait() and waitpid()
o notes
o summary
o examples
* Threads
o notes
o summary
o examples

Interprocess communication / UNIX IPC programming
The following entries cover topics specific to Inter-process communication mechanisms under UNIX:

* IPC: signals
o notes
o summary
o examples
* IPC: pipes
o notes
o summary
o examples
* IPC: named pipes
o notes
o summary
o examples
* IPC: BSD sockets
o notes
o summary
o examples
* IPC: POSIX Message queues
o notes
o summary
o examples
* IPC: POSIX Semaphores
o notes
o summary
o examples
* IPC: POSIX shared memory
o notes
o summary
o examples
* IPC: notes on POSIX objects -- the POSIX objects mess
o notes

參考來源：

"General topics on UNIX programming The following entries cover some general programming topics under UNIX: Regular expressions notes summary example Parsing the command line notes summary examples Tasks, fork(), wait() and waitpid() notes summary examples Threads notes summary examples"
- UNIX programming examples (在「Google 網頁註解」中檢視)