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dfコマンドはどこからファイルシステムの統計を取得するのか - Plan 9とGo言語のブログ
(blog.lufia.org)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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You can check the CPU and memory statistics by looking at the files under /proc, but I was wondering how to get the file system capacity, so I looked at the df(1) code. . coreutils: df.c coreutils: fusage.c macOS: df.c Here is the code prepared to verify the operation of the library. Code to find out what df uses to output · GitHub For Linux On Linux, file system information can be obtained using statvfs(3). Although this is treated as a wrapper for the statfs(2) system call, it is basically recommended to use statvfs(3). (Via google translate)