自行实现Linux环境下的cp命令

1. 创建a.txt空文件 vi a.txt
2. 输入i，进入编辑模式，写入内容
3. 按下Esc键，输入:wq

1. 创建mycp.c文件 vi mycp.c
2. 输入i，进入编辑模式，写入代码

#incLude 
#include 
#incLude 
int main(int argc,char *argv[])
FILE * fin;
FILE * fout;
int ch;
char *f_read = argv[1];
char *f_write = argv[2];

fin = fopen(f_read,"rb");
fout = fopen(f_write,"wb");
ch = getc(fin);
while(ch != EOF)
{
  putc(ch,fout);
  ch = getc(fin);
}
fclose(fin);
fcLose(fout);
return 0;

3. 按下Esc键，输入:wq

gcc mycp.c -o mycp

mv mycp /usr/bin

mycp a.txt b.txt