Creating a folder

Under Linux, how do i create a folder if it is not already created?

I have this:
sprintf(file_out, "./folder/%s", sorted[j]);

where folder is a folder, but if the folder does not exist the code wont work. is there anyway to automatically create it if its not created?

Quote:

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Originally Posted by taurus

Under Linux, how do i create a folder if it is not already created?

I have this:
sprintf(file_out, "./folder/%s", sorted[j]);

where folder is a folder, but if the folder does not exist the code wont work. is there anyway to automatically create it if its not created?

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The world "folder" is never used in the linux world.

To create a directory you can use mkdir. mkdir is both a bash command, and a C library function (in sys/stat.h). You can use either one.

Could I see an example of the use of the function mkdir in C

Could I see an example of the use of the function mkdir in C.
I have tried:
mkdir (const char *directory, mode_t mode);

But not really sure, doesnt work.

false alarm, found an example:
int n = mkdir("./test", S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);