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golang获取硬盘分区剩余空间大小

2017-06-04 09:41 218 查看
需求是这样的，想远程执行这个命令，返回各个硬盘分区的剩余空间的大小，当然，剩余空间太小可能就要处理了。

01
package
main
02
03
import
(
04
"fmt"
05
"syscall"
06
//
"strings"
07
gofstab
"github.com/deniswernert/go-fstab"
08
)
09
10
type
DiskStatus
struct
 
{
11
All
uint64 `json:
"all"
`
12
Used
uint64 `json:
"used"
`
13
Free
uint64 `json:
"free"
`
14
}
15
const
 
(
16
B
= 1
17
KB
= 1024 * B
18
MB
= 1024 * KB
19
GB
= 1024 * MB
20
)
21
//
disk usage of path/disk
22
func
DiskUsage(path string) (disk DiskStatus) {
23
fs
:= syscall.Statfs_t{}
24
err
:= syscall.Statfs(path, &fs)
25
if
 
err
!= nil {
26
return
27
}
28
disk.All
= fs.Blocks * uint64(fs.Bsize)
29
disk.Free
= fs.Bfree * uint64(fs.Bsize)
30
disk.Used
= disk.All - disk.Free
31
return
32
}
33
func
main(){
34
mounts
,_ :=gofstab.ParseSystem()
35
 
36
for
 
_,val
:= range mounts{
37
//fmt.Printf("%v\n",val.File)
38
if
 
val.File
==
"swap"
||val.File
==
"/dev/shm"
||val.File
==
"/dev/pts"
||val.File
==
"/proc"
||val.File
==
"/sys"
{
39
continue
40
}
41
disk
:= DiskUsage(val.File)
42
//fmt.Printf("All:
%.2f GB\n", float64(disk.All)/float64(GB))
43
//fmt.Printf("Used:
%.2f GB\n", float64(disk.Used)/float64(GB))
44
//fmt.Printf("Free:
%.2f GB\n", float64(disk.Free)/float64(GB))
45
diskall:=float64(disk.All)/float64(GB)
46
diskfree:=
float64(disk.Free)/float64(GB)
47
 
48
dfpercent:=float64(diskfree/diskall)
49
fmt.Printf(
"%s
%.2f%%\n"
,val.File,
dfpercent*100)
50
}
51
}

                                            

                                        

                        
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