golang擷取linux硬碟分區空間大小

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獲得當前分區空間大小

package mainimport ("fmt""syscall")type DiskStatus struct {All  uint64 `json:"all"`Used uint64 `json:"used"`Free uint64 `json:"free"`}// disk usage of path/diskfunc DiskUsage(path string) (disk DiskStatus) {fs := syscall.Statfs_t{}err := syscall.Statfs(path, &fs)if err != nil {return}disk.All = fs.Blocks * uint64(fs.Bsize)disk.Free = fs.Bfree * uint64(fs.Bsize)disk.Used = disk.All - disk.Freereturn}const (B  = 1KB = 1024 * BMB = 1024 * KBGB = 1024 * MB)func main() {disk := DiskUsage("/")fmt.Printf("All: %.2f GB\n", float64(disk.All)/float64(GB))fmt.Printf("Used: %.2f GB\n", float64(disk.Used)/float64(GB))fmt.Printf("Free: %.2f GB\n", float64(disk.Free)/float64(GB))}