golang擷取硬碟分區剩餘空間大小

這是一個建立於 的文章，其中的資訊可能已經有所發展或是發生改變。

需求是這樣的，想遠程執行這個命令，返回各個硬碟分區的剩餘空間的大小，當然，剩餘空間太小可能就要處理了。

package mainimport ("fmt""syscall"//"strings"gofstab "github.com/deniswernert/go-fstab")type DiskStatus struct {All  uint64 `json:"all"`Used uint64 `json:"used"`Free uint64 `json:"free"`}const (B  = 1KB = 1024 * BMB = 1024 * KBGB = 1024 * MB)// 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}func main(){mounts ,_ :=gofstab.ParseSystem()for _,val := range mounts{//fmt.Printf("%v\n",val.File)if val.File == "swap"||val.File == "/dev/shm"||val.File == "/dev/pts"||val.File == "/proc"||val.File =="/sys"{continue}disk := DiskUsage(val.File)//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))diskall:=float64(disk.All)/float64(GB)diskfree:= float64(disk.Free)/float64(GB)dfpercent:=float64(diskfree/diskall)fmt.Printf("%s %.2f%%\n",val.File, dfpercent*100)}}