Solution for Exercise 23-5

ex2305

#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>

int main()
{
    char curdir[255];

    getcwd(curdir,255);
    printf("Current directory is %s\n",curdir);
    mkdir("very_temporary",S_IRWXU);
    puts("New directory created.");
    chdir("very_temporary");
    getcwd(curdir,255);
    printf("Current directory is %s\n",curdir);
    return(0);
}

Output

Current directory is /Users/dang/C Programming FD/code/23
New directory created.
Current directory is /Users/dang/C Programming FD/code/23/very_temporary

Notes

* When compiling for Windows, remove the second argument for the mkdir() function at Line 11.

* This program generates inconsistent results depending on the platform:

On the Mac, the very_termporary directory was created and assigned permissions drwx------, which is what the mkdir() function at Line 11 dictates.

In the Unbuntu Linux shell in Windows 10, the directory is assigned permissions drwxrwxrwx, which is not what the permissions setting in the mkdir() function specified.

* Remember when working with Windows that the backslash is used as a pathname separator. You must specify two of them in a string literal, \\, for the backslash to be properly interpreted.

Exercise ex2306 →