Why mkdir fails to work with tilde (~)?
~ is known only to the shell and not to the mkdir system call.
But if you try:
system("mkdir ~/foo");this works as the "mkdir ~/foo" is passed to a shell and shell expands ~ to $HOME
If you want to make use of the $HOME with mkdir, you can make use of the getenv function as:
char path[MAX];char *home = getenv ("HOME");if (home != NULL) { snprintf(path, sizeof(path), "%s/new_dir", home); // now use path in mkdir mkdir(path, PERM);}