rename、remove

/***
remove.c
***/
#include<stdio.h>int main()
{remove("./b.txt");
}

運行結果：

ubuntu1604@ubuntu:~/wangqinghe/C/20190728$ gedit remove.c b.txt

^C

ubuntu1604@ubuntu:~/wangqinghe/C/20190728$ gcc remove.c -o remove

ubuntu1604@ubuntu:~/wangqinghe/C/20190728$ ls

a.txt? b.txt? flush.? flush.c? remove? remove.c

ubuntu1604@ubuntu:~/wangqinghe/C/20190728$ ./remove

ubuntu1604@ubuntu:~/wangqinghe/C/20190728$ ls

a.txt? flush.? flush.c? remove? remove.c

?

/***
rename.c
***/
#include<stdio.h>int main()
{rename("./a.txt","./b.txt");return 0;
}

運行結果：

ubuntu1604@ubuntu:~/wangqinghe/C/20190728$ ./rename

ubuntu1604@ubuntu:~/wangqinghe/C/20190728$ ls

b.txt? flush.? flush.c? remove? remove.c? rename? rename.c