查看服务器的内存使用与空余容量

一.python

#!/usr/bin/env python
# coding=utf-8

from collections import OrderedDict

def meminfo():
    '''Return the information in /proc/meminfo as a dictionary'''
    meminfo=OrderedDict()

    with open('/proc/meminfo') as f:
        for line in f:
            meminfo[line.split(':')[0]] = line.split(':')[1].strip()
    return meminfo

if __name__=='__main__':
    #打印内存信息

    meminfo = meminfo()
    print ('内存总量: {0}'.format(meminfo['MemTotal']))
    print ('未使用内存: {0}'.format(meminfo['MemFree']))

二.linux

#! /bin/bash


mem_info=`awk -F " "  '{print $2}' /proc/meminfo|head -2`
i=0
for info in $mem_info
do
  i=$[ $i+1 ]
  info_arr[$i]=$info
done

echo "内存总量为${info_arr[1]}kb,剩余空间为${info_arr[2]}kb"