Python 獲取磁盤信息

一，使用 subprocess + shell 命令實現

二，使用 Psutil 實現 （用python實現系統相關的命令行功能）

 

一，使用 subprocess + shell 命令實現

# -*- coding=utf-8 -*-
# Created Time: 2016年12月16日 星期五 16時53分27秒
# File Name: 02_os_disk_info.py

"""
獲取磁盤信息
"""

import subprocess


def get_one(path):

    # 指定單位 -BK -BM -BG
    df = subprocess.Popen(['df', '-BG', path], stdout=subprocess.PIPE)

    output = df.communicate()[0]

    print output

    device, size, used, available, percent, mountpoint = \
            output.split('\n')[1].split()

    print 'device: ', device
    print 'seize: ', size
    print 'used: ', used
    print 'available: ', available
    print 'percent: ', percent
    print 'mountpoint: ', mountpoint
    print '########################'


def get_all():

    # 指定單位 -BK -BM -BG
    df = subprocess.Popen(['df', '-BG'], stdout=subprocess.PIPE)

    output = df.communicate()[0]

    print output

    for i in xrange(30):

        try:
            device, size, used, available, percent, mountpoint = \
                    output.split('\n')[i+1].split()

            print '########################'
            print 'device: ', device
            print 'seize: ', size
            print 'used: ', used
            print 'available: ', available
            print 'percent: ', percent
            print 'mountpoint: ', mountpoint
        except:
            break


def main():

    path = '/dev/sda1'

    get_one(path)

    get_all()


if __name__ == '__main__':
    main()

輸出：

$ python 02_os_disk_info.py 
Filesystem     1G-blocks  Used Available Use% Mounted on
/dev/sda1           902G   38G      819G   5% /

device:  /dev/sda1
seize:  902G
used:  38G
available:  819G
percent:  5%
mountpoint:  /
########################
df: /run/user/1000/gvfs: Transport endpoint is not connected
Filesystem     1G-blocks  Used Available Use% Mounted on
udev                  8G    1G        8G   1% /dev
tmpfs                 2G    1G        2G   1% /run
/dev/sda1           902G   38G      819G   5% /
none                  1G    0G        1G   0% /sys/fs/cgroup
none                  1G    0G        1G   0% /run/lock
none                  8G    1G        8G   3% /run/shm
none                  1G    1G        1G   1% /run/user

########################
device:  udev
seize:  8G
used:  1G
available:  8G
percent:  1%
mountpoint:  /dev
########################
device:  tmpfs
seize:  2G
used:  1G
available:  2G
percent:  1%
mountpoint:  /run
########################
..
..

 

二，使用 Psutil 實現

In [1]: import psutil

In [2]: partitions = psutil.disk_partitions()

In [3]: partitions
Out[3]: 
[sdiskpart(device='/dev/sda1', mountpoint='/', fstype='ext4', opts='rw,relatime,errors=remount-ro,data=ordered'),
 sdiskpart(device='/dev/sdb4', mountpoint='/media/bwhite/\\xc7\xd7\xb0\\xae\\xb5\\xc4-B4FE-5315', fstype='vfat', opts='rw,nosuid,nodev,noexec,relatime,uid=1000,fmask=0022,dmask=0022,codepage=936,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro')]

In [4]: foo = psutil.disk_usage(partitions[1].mountpoint)

In [5]: foo
Out[5]: sdiskusage(total=4015390720, used=1512292352, free=2503098368, percent=37.7)

In [6]: