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#include <iostream>

#include <sys/statvfs.h>

int main(int argc, char* argv[]) {

if (argc < 2) {

std::cerr << "Error: no mount point passed" << std::endl;

return 1;

}

struct statvfs info;

if (statvfs(argv[1], &info) != 0) {

perror("statvfs");

return 1;

}

std::cout << "Filesystem Size Used Avail Use% Mounted on" << std::endl;

std::cout << "-------------- ---- ---- ----- ---- ----------" << std::endl;

std::cout << argv[1] << " ";

std::cout << (info.f_blocks * info.f_frsize) << " ";

std::cout << ((info.f_blocks - info.f_bfree) * info.f_frsize) << " ";

std::cout << (info.f_bavail * info.f_frsize) << " ";

std::cout << (info.f_blocks > 0 ? ((info.f_blocks - info.f_bfree) * 100 / info.f_blocks) : 0) << " ";

std::cout << argv[1] << std::endl;

return 0;

}