docfile.c

#include <stdio.h>
#include <stdlib.h>
int main(int argc,char**argv){
    argv[0] = "/home/thieumao/Desktop/thieumao.txt";
    FILE*fd=fopen(argv[0],"r");
    if(fd==NULL) {
        puts("error open file");
        exit(1);
    }
    int ch;
    while((ch=fgetc(fd))>0){
        putchar(ch);
    }
    return 0;
}