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#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
printf(”Hello world!\n”);
exit(0);
}
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# gcc -o hello hello.c
# ./hello
Hello wordl!
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passwd <username>
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for user dewang.
New UNIX passWord
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Retype new UNIX password:
passwd: all authentication tokens updated successfully.
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <pthread.h>
#include <assert.h>
void * routine(void * arg);
int pool_add_job(void *(*process)(void * arg),void *arg);
int pool_init(unsigned int thread_num);
int po ......
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