https://www.php.net/manual/en/function.eio-fstatvfs.php
PHP: eio_fstatvfs - Manual
Get file system statistics
phpeiofstatvfsmanual
https://www.w3schools.com/python/ref_os_fstatvfs.asp
Python os.fstatvfs()
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML...
pythonosfstatvfs
https://manpages.ubuntu.com/manpages/xenial/man3/Filesys::Statvfs.3pm.html
Ubuntu Manpage: Filesys::Statvfs - Perl extension for statvfs() and fstatvfs()
Perl extension for statvfs() and fstatvfs()
ubuntumanpagestatvfsperlextension
https://manpages.ubuntu.com/manpages/xenial/man2/fstatvfs.2.html
Ubuntu Manpage: statvfs, fstatvfs - get filesystem statistics
get filesystem statistics
ubuntumanpagestatvfsgetfilesystem
https://manpages.ubuntu.com/manpages/bionic/man2/fstatvfs.2.html
Ubuntu Manpage: statvfs, fstatvfs - get filesystem statistics
get filesystem statistics
ubuntumanpagestatvfsgetfilesystem