#!/usr/bin/env python3
#create at 2018-11-30
'this is a system monitor scripts'
__author__="yjt"
import os
import time
import sys
import datetime
import socket #用于获取主机名
import psutil #用于获取CPU等信息
import re
#以下是变量值，自己定义
CPUT = 2 #计算CPU利用率的时间间隔
NETT = 2 #计算网卡流量的时间间隔
LOOPT = 2 #脚本循环时间间隔
#获取系统基本信息
def baseinfo():
hostname = socket.gethostname()
start_time = datetime.datetime.fromtimestamp(psutil.boot_time()).strftime("%Y-%m-%d %H:%M:%S")
now_time = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))
# sys_runtime = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time() - psutil.boot_time()))
sys_runtime = os.popen('w').readline().split('users')[0].split('up')[1].strip()[:-1].strip()[:-1]
print("\033[31mbase_info:\033[0m")
print("hostname: %-10s"%(hostname))
print("start_time: %-15s"%(start_time))
print("now_time: %-15s"%(now_time))
print("sys_runtime: %-10s"%(sys_runtime))
def userconninfo():
print("\033[31muser_conn_info:\033[0m")
user_conn = len(psutil.users())
print("user_conn_num:%s"%(user_conn))
print("conn_user%-10s conn_terminal%-10s remmote_ip%-10s start_time%-15s pid%-15s"%('','','','',''))
for info in range(user_conn):
user = psutil.users()[info].name
terminal = psutil.users()[info].terminal
host = psutil.users()[info].host
start_time = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(psutil.users()[0].started))
pid = psutil.users()[info].pid
#print("conn_user:%-10s conn_terminal:%-10s from_host:%-15s start_time:%-20s pid:%-10d"%(user,terminal,host,start_time,pid))
print("%-19s %-23s %-20s %-25s %-15d"%(user,terminal,host,start_time,pid))
#获取CPU信息
def cpuinfo():
ave_load = os.popen('uptime').readline().split(":")[-1].split()
ave_load = ' '.join(ave_load) #CPU平均负载
#以下四项值都是获取的瞬时值
user_use = psutil.cpu_times().user #用户态使用CPU时间
sys_use = psutil.cpu_times().system #系统态使用CPU时间
idle = psutil.cpu_times().idle #CPU空闲时间
iowait = psutil.cpu_times().iowait #IO等待时间
total_cpu = 0
for i in range(len(psutil.cpu_times())):
total_cpu += psutil.cpu_times()[i]
cpu_pre = psutil.cpu_percent(CPUT)
logical_cpu = psutil.cpu_count()
pyhsical_cpu = psutil.cpu_count(logical=False)
print("\033[31mcpu_info:\033[0m")
print("cpu_ave_load: %-20s" %ave_load)
print("cpu_user_use: %-.2f%%" %(user_use / total_cpu * 100))
print("cpu_sys_use: %-.2f%%" %(sys_use / total_cpu * 100))
print("cpu_idle: %-.2f%%" %(idle / total_cpu * 100 ))
print("cpu_iowait: %-.2f%%" %(iowait / total_cpu * 100 ))
print("cpu_ave_use: %-.2f%%" %cpu_pre)
print("logica_cpu: %-4d"%logical_cpu) #获取逻辑CPU个数
print("pyhsical_cpu: %-4d"%pyhsical_cpu)#获取物理CPU个数
#获取内存信息
def meminfo():
total_mem = psutil.virtual_memory().total
use_mem = psutil.virtual_memory().used
mem_percent = psutil.virtual_memory().percent
free_mem = psutil.virtual_memory().free
swap_mem = psutil.swap_memory().total
swap_use = psutil.swap_memory().used
swap_free = psutil.swap_memory().free
swap_percent = psutil.swap_memory().percent
print("\033[31mmem_info:\033[0m")
print("total_mem: %d M"%(total_mem / 1024 /1024))
print("use_mem: %d M"%(use_mem / 1024 /1024))
print("free_mem: %d M"%(free_mem / 1024 /1024))
print("mem_percent: %s%%"%(mem_percent))
print("swap_mem: %d M"%(swap_mem / 1024 /1024))
print("swap_use: %d M"%(swap_use / 1024 /1024))
print("swap_free: %d M"%(swap_free / 1024 /1024))
print("swap_percent: %s%%"%(swap_percent))
#获取磁盘信息
def diskinfo():
print("\033[31mdisk_info:\033[0m")
print("disk%-10s total%-10s free%-10s used%-10s percent%-10s"%('','(G)','(G)','(G)','(%)'))
disk_len = len(psutil.disk_partitions())
for info in range(disk_len):
disk = psutil.disk_partitions()[info][1]
if len(disk) < 10:
total = str(round(psutil.disk_usage(disk).total /1024/1024/1024)) + 'G'
free = str(round(psutil.disk_usage(disk).free /1024/1024/1024)) + 'G'
used = str(round(psutil.disk_usage(disk).used /1024/1024/1024)) + 'G'
percent = str(psutil.disk_usage(disk).percent) + '%'
print('%-15s'%(disk),end='')
#print(' %-10s total: %-10s free: %-10s used:%-10s percent:%-s'%('',total,free,used,percent))
print('%-13s %-13s %-13s %-s'%(total,free,used,percent))
#获取网卡信息
def netinfo():
print('\033[31mnet_info\033[0m')
net_item = list(psutil.net_if_addrs())
for net in net_item:
if re.search(r'bond.*|em.*|eno.*|^eth.*',net):
network_card = net
ip = psutil.net_if_addrs()[net][0].address
recv_1,recv_2,send_1,send_2=0,0,0,0
with open ('/proc/net/dev','r') as f:
net_info = f.readlines()
net_list = str(net_info).lower().split()
if net_list[0] == net:
recv_1 = float(net_list[1])
send_1 = float(net_list[9])
time.sleep(NETT)
with open ('/proc/net/dev','r') as f:
net_info = f.readlines()
net_list = str(net_info).lower().split()
if net_list[0] == net:
recv_2 = float(net_list[1])
send_2 = float(net_list[9])
print("network_card%-10s ip%-20s received%-10s transmit%-10s "%('','','(kb/s)','(kb/s)'))
#print("network_card: %-10s ip: %-20s received: %-.3f Kb/s transmit: %-.3f kb/s" % (network_card,ip,(recv_2/1024 - recv_1/1024),(send_2/1024 - send_1/1024)))
print("%-21s %-22s %-.3f%13s %-.3f " % (network_card,ip,(recv_2/1024 - recv_1/1024),'',(send_2/1024 - send_1/1024)))
#获取TCP连接数
def tcpinfo():
print('\033[31mtcp_info\033[0m')
status_list = ["LISTEN","ESTABLISHED","TIME_WAIT","CLOSE_WAIT","LAST_ACK","SYN_SENT"]
status_init = []
net_conn = psutil.net_connections()
for key in net_conn:
status_init.append(key.status)
for value in status_list:
print(value,status_init.count(value))
if __name__ == '__main__':
while True:
try:
os.system('clear')
baseinfo()
print("********************************************************")
userconninfo()
print("########################################################")
cpuinfo()
print("========================================================")
meminfo()
print("########################################################")
diskinfo()
print("********************************************************")
netinfo()
print("++++++++++++++++++++++++++++++++++++++++++++++++++++++++")
tcpinfo()
time.sleep(LOOPT)
except KeyboardInterrupt as e:
print ('')
print("Bye-Bye")
sys.exit(0)