work2.c

Linux下的C代码 实现了对Linux的文件系统的操作

#include<sys/stat.h>
#include<unistd.h>
#include<fcntl.h>
#include<sys/types.h>
#include<stdio.h>
main()
{
mkdir("test",0777);
creat("/root/test/myfile",0000);
struct stat buf;
stat ("/root/test/myfile",&buf);
printf("myfile = %d \n",buf.st_mode);
if(access("/root/test/myfile",X_OK)!=0) 
{
printf("You do not have acceess for EXECUTING \"myfile\"!\nI am now chmod it. \n");

chmod("/root/test/myfile",S_IXUSR);
}
if(access("/root/test/myfile",X_OK)==0)
printf("\nNow you have access for EXECUTING \"myfile\"!\n");
}