How do I read system information in C++?

Question

I\'m trying to get information like OS version, hard disk space, disk space available, and installed RAM on a Linux system in C++. I know I can use system() to run

Answer 1

If you are using *nix commands via system.

Then do man scroll to the bottom of the man page and it will usually show you what relevant C system calls are related.

Example:  man uname:
SEE ALSO
       uname(2), getdomainname(2), gethostname(2)


Explanation of numbers:

(1): User UNIX Command
(2): Unix and C system calls
(3): C Library routines
(4): Special file names
(5): File formats
(6): 
(7):
(8): System admin commands

So if you are using system("uname"). From the man page you can see that there is also a uname C system call (uname(2)). So you can now do a 'man 2 uname' to get information about how to use the C system call uname.