#include <bits/stdc++.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/wait.h>
using namespace std;
struct Filetools{
char path[105];///用户输入的文件路径
char dirpath[105];///用户输入的文件夹路径
void add_file(){///添加文件路径
cout << "please cin the file: ";
cin >> path;
}
void creat_file(){///创建文件
add_file();
open(path, O_CREAT, 0777);
return ;
}
void write_file(){///对文件写入内容
add_file();
getchar();
cout << "please cin you things: ";
char a[1005];
memset(a, 0, sizeof(a));
cin.getline(a, 505);///采用cin.getline，可以一次读取一行
int fp = open(path, O_RDWR);
write(fp, a, strlen(a));///写入fp文件，一次写入一行
close(fp);
}
void read_file(){
add_file();
cout << "the read the file is running\n";
char a[1005];
memset(a, 0, sizeof(a));
FILE *fp;
fp = fopen(path, "r");
while(fgets(a, 1000, fp) != NULL){///每次读取一行，如果不到最后一行就一直读取
cout << a;///输出读取的结果
}
fclose(fp);///关闭读取的文件
}
void copy(){
add_file();
cout << "please cin the other file: ";
char paths[1005];
memset(paths, 0, sizeof(paths));
cin >> paths;
FILE *fp;
fp = fopen(path, "r");
int pid = fork();///创建一个子进程来进行对复制文件的写入，这样的话，就不会让freopen的读出效果影响主程序
if(pid == 0){
freopen(paths, "w", stdout);///采用freopen的读出方式
char a[1005];
memset(a, 0, sizeof(a));
while(fgets(a, 1000, fp) != NULL){
cout << a;///输出文件中的内容到另一个文件来实现复制
}
fclose(fp);
return ;
}
}
void my_File_chmod(){
add_file();
int fp = open(path, O_RDWR);
cout << "please cin the mode, such as the list\n";
cout << "1: S_IRWXU\n";
cout << "2: S_IRUSR(S_IREAD)\n";
cout << "3: S_IWUSR(S_IWRITE)\n";
cout << "4: S_IXUSR(S_IEXEC)\n";
cout << "cin the num as list :";
int aa;
cin >> aa;///选择序号来更改权限
if(aa == 1)
fchmod(fp, S_IRWXU);
if(aa == 2)
fchmod(fp, S_IRUSR);
if(aa == 3)
fchmod(fp, S_IWUSR);
if(aa == 4)
fchmod(fp, S_IXUSR);
}
void my_ls_file_name(){
add_file();
char a[105] = "ls -l ";///采用控制台的方式来进行文件夹目录下的文件的读取
/**
* 以下的复制char数组的方法，是因为system(char *)
* 所以将命令拷贝到一个char数组里，就可以实现system的命令
* **/
int len = strlen(a);
int len1 = strlen(path);
for(int i = len; i < len + len1; i ++){
a[i] = path[i - len];
}
int pid = fork();///fork一个子进程可以使得父进程不结束
if(pid == 0){
system(a);
return ;
}
wait(0);
}
void add_dir(){///输入文件夹路径
cout << "please cin the dirname :";
cin >> dirpath;
}
void creat_dir(){
char a[205] = "mkdir ";///使用mkdir语句来生成文件夹
int len = strlen(a);
add_dir();
int len1 = strlen(dirpath);
for(int i = len; i < len + len1; i ++){
a[i] = dirpath[i - len];
}
int pid = fork();
if(pid == 0){
system(a);
return ;
}
wait(0);
}
void ls_dir(){
char a[205] = "ls ";///使用ls语句来读取文件夹下的文件
int len = strlen(a);
int len1 = strlen(dirpath);
for(int i = len; i < len + len1; i ++){
a[i] = dirpath[i - len];
}
int pid = fork();
if(pid == 0){
system(a);
return ;
}
wait(0);
}
void del_dir(){
add_dir();
char a[205] = "rm -rf ";///rm -rf语句来删除文件夹
int len = strlen(a);
int len1 = strlen(dirpath);
for(int i = len; i < len + len1; i ++){
a[i] = dirpath[i - len];
}
int pid = fork();
if(pid == 0){
system(a);
return ;
}
wait(0);
}
void cd_dir(){
add_dir();
}
}F;
void view(){///菜单
cout << "1. 创建新文件\n";
cout << "2. 写文件\n";
cout << "3. 读文件\n";
cout << "4. 复制文件\n";
cout << "5. 修改文件权限\n";
cout << "6. 查看文件权限\n";
cout << "7. 创建目录\n";
cout << "8. 查看目录\n";
cout << "9. 删除目录\n";
cout << "10. 切换当前目录\n";
cout << "0.退出\n";
}
int main(){
while(1){
view();
int num;
cin >> num;
if(num == 0){
break;
}
if(num == 1){
F.creat_file();
}
if(num == 2){
F.write_file();
}
if(num == 3){
F.read_file();
}
if(num == 4){
F.copy();
}
if(num == 5){
F.my_File_chmod();
}
if(num == 6){
F.my_ls_file_name();
}
if(num == 7){
F.creat_dir();
}
if(num == 8){
F.ls_dir();
}
if(num == 9){
F.del_dir();
}
if(num == 10){
F.cd_dir();
}
}
return 0;
}
