[系统调用](%E7%B3%BB%E7%BB%9F%E8%B0%83%E7%94%A8.md) [常用IO函数](%E5%B8%B8%E7%94%A8IO%E5%87%BD%E6%95%B0.md) [文件操作函数](%E6%96%87%E4%BB%B6%E6%93%8D%E4%BD%9C%E5%87%BD%E6%95%B0.md) [文件描述符复制](%E6%96%87%E4%BB%B6%E6%8F%8F%E8%BF%B0%E7%AC%A6%E5%A4%8D%E5%88%B6.md) [目录相关操作](%E7%9B%AE%E5%BD%95%E7%9B%B8%E5%85%B3%E6%93%8D%E4%BD%9C.md) [时间相关函数](%E6%97%B6%E9%97%B4%E7%9B%B8%E5%85%B3%E5%87%BD%E6%95%B0.md) [进程](%E8%BF%9B%E7%A8%8B.md) [valgrind](valgrind.md) [进程通信](%E8%BF%9B%E7%A8%8B%E9%80%9A%E4%BF%A1.md) [信号](%E4%BF%A1%E5%8F%B7.md) [进程组](%E8%BF%9B%E7%A8%8B%E7%BB%84.md) [会话](%E4%BC%9A%E8%AF%9D.md) [守护进程](%E5%AE%88%E6%8A%A4%E8%BF%9B%E7%A8%8B.md) [线程](%E7%BA%BF%E7%A8%8B.md) [线程属性](%E7%BA%BF%E7%A8%8B%E5%B1%9E%E6%80%A7.md) [互斥锁](%E4%BA%92%E6%96%A5%E9%94%81.md) [读写锁](%E8%AF%BB%E5%86%99%E9%94%81.md) [条件变量](%E6%9D%A1%E4%BB%B6%E5%8F%98%E9%87%8F.md) [信号量](%E4%BF%A1%E5%8F%B7%E9%87%8F.md)