awk 获取系统状态 cpu 内存

标签：empty   bin   磁盘   pass   ifconf   子网   个数   eth0   开放   

#!/bin/bash

#coding:utf-8

#author:fjj

#date:2018.1.28

echo "取出UID大于200或root的用户信息:" 

awk -F: '{if ($3 >= 200 || $1 == "root") print "info:" $0}' /etc/passwd

echo 

echo "取出前3列之外的所有列:"

awk -F: '{for (i=3;i<NF;i++) print $i}' /etc/passwd | head -n 5

echo

echo "取出磁盘使用百分比:"

df -h | sed -n '2p' | awk '{print $5}' | awk -F% '{print $1}' 

echo

echo "取出eth0的ip:" 

echo $(ifconfig | grep eth0 -A 1 | sed -n '2p' | awk '{print $2}' | awk -F: '{print $2}') 

echo $(ifconfig | grep eth0 -A 1  | sed -n '$p' | awk -F: '{print $2,$3}' | awk '{print "IP:"$1,"子网掩码:"$3}')

echo $(/sbin/ip a | grep "eth0:" -A 2 | sed -n '$p' | awk '{print $2}' | awk -F'/' '{print "IP:"$1,"子网掩码:"$2}')

echo

echo "显示当前开放的端口号:"

netstat -anltp  | awk -F: '{ print $2}' | awk '{print $1}' | grep -v "^$" | sort -n | uniq

#netstat -antulp | awk -F: '{print $2}'  | awk '{print $1}' | sed '/^$/d' | sort -n | uniq

echo 

echo "CPU负载:"

#uptime | awk -F'average:' '{print $2}'

uptime | awk -F': ' '{print $2}'

uptime | awk -F'average: ' '{print $2}'

echo

echo "CPU的个数:"

lscpu  | grep "^CPU(s)" -w | awk '{print $2}'

echo

[root@centos-6_5 awk]# sh system.sh 

取出UID大于200或root的用户信息:

info:root:x:0:0:root:/root:/bin/bash

info:saslauth:x:499:76:"Saslauthd user":/var/empty/saslauth:/sbin/nologin

info:dockerroot:x:498:498:Docker User:/var/lib/docker:/sbin/nologin

取出前3列之外的所有列:

0

0

root

/root

1

取出磁盘使用百分比:

8

取出eth0的ip:

10.135.113.229

IP:10.135.113.229 子网掩码:10.135.127.255

IP:10.135.113.229 子网掩码:18

显示当前开放的端口号:

22

25

42654

47772

CPU负载:

0.00, 0.00, 0.00

0.00, 0.00, 0.00

CPU的个数:

1

awk 获取系统状态 cpu 内存

标签：empty   bin   磁盘   pass   ifconf   子网   个数   eth0   开放   

原文地址：http://blog.51cto.com/19941018/2066494