To read from a text file in C, you will need to open a file stream using the fopen() function. Once a file stream has been opened, you can then read the file line by line using the fgets() function.

And where Posix file systems have dozens of file system functions, object storage has just a few, such as PUT (a write), GET (a read), DELETE and HEAD (which returns metadata).

Read more on file and object storage. Storage pros and cons: Block vs file vs object storage. Despite the many changes in storage, there are still some fundamentals that hold true.