1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
#include <stdio.h>
#include <stdlib.h>
int main(void)
{
FILE* fd_1;
FILE* fd_2;
char* path_1 = "./test_1.sh";
char* path_2 = "./test_2.sh";
char* path_3 = "./test_3.sh";
char *buffer_1 = (char*)malloc(sizeof(char) * 1024 *1024);
char* command = (char*)malloc(sizeof(char) * 1024 * 1024);
int j = 0;
/* 创建文件 */
fd_1 = fopen(path_1, "w");
/* 输出一个空行 */
sprintf(command, "echo \"\"");
system(command);
j = 0;
while(command[j] != '\0') {
j++;
}
printf("cur_line: %d, j: %d\n", __LINE__, j);
/* 判断变量"path_2"对应的文件是否存在 */
sprintf(command, "echo \"if [ ! -f %s ]; then\" >> %s", path_2, path_1);
system(command);
j = 0;
while(command[j] != '\0') {
j++;
}
printf("cur_line: %d, j: %d\n", __LINE__, j);
/* 如果变量"path_2"对应的文件不存在，则将变量"path_1"对应的文件拷贝为变量"path_2"对应的文件 */
sprintf(command, "echo \"cp %s %s\" >> %s", path_1, path_2, path_1);
system(command);
j = 0;
while(command[j] != '\0') {
j++;
}
printf("cur_line: %d, j: %d\n", __LINE__, j);
sprintf(command, "echo \"fi\" >> %s", path_1);
system(command);
j = 0;
while(command[j] != '\0') {
j++;
}
printf("cur_line: %d, j: %d\n", __LINE__, j);
/* 运行变量"path_1"对应的脚本 */
sprintf(command, "sh %s", path_1);
j = 0;
while(command[j] != '\0') {
j++;
}
printf("cur_line: %d, j: %d\n", __LINE__, j);
system(command);
/* 以只读的方式打开变量"path_1"对应的文件 */
fd_1 = fopen(path_1, "r");
/* 创建变量"path_3"对应的文件 */
fd_2 = fopen(path_3, "w");
/* 读取变量"path_1"对应的文件内容 */
fread(buffer_1, 1024, 1, fd_1);
/* 将变量"path_1"对应的文件内容写入到变量"path_3"对应的文件中 */
fwrite(buffer_1, 1024, 1, fd_2);
return 0;
}
|