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1. °²×° linux ²Ù×÷ϵͳ
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redhatϵÁÐ(rhel,centos,fc) yum install package-name
debianϵÁÐ(debian,ubuntu)  apt-get install package-name
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redhat:  yum install python-devel
debian:  apt-get install python-dev
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redhat:  useradd user-name
debian:  useradd -m user-name
debianϵÁÐÀï ......

linux api±Ê¼Ç£¨6£©£ºỊ̈߳¨ËÄ£© Ïß³Ì˽ÓÐÊý¾Ý

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#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
pthread_key_t kKey = 0;
void * ThreadProc(void* arg)
{
char* a = (char*)(arg);
sleep(2);
pthread_setspecific(kKey, a);
......

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syscall:
int ret = syscall(...);
if (ret < 0 && EINTER == errno)
goto syscall;
el ......

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