Linux内部查看系统信息
$INTERNET192忽略
1 #!/bin/bash
2
3 function system(){
4 echo "#########################系统信息#########################"
5 OS_TYPE=`uname`
6 OS_VER=`cat /etc/redhat-release`
7 OS_KER=`uname -a|awk '{print $3}'`
8 OS_TIME=`date +%F_%T`
9 OS_RUN_TIME=`uptime |awk '{print $3}'|awk -F, '{print $1}'`
10 OS_LAST_REBOOT_TIME=`who -b|awk '{print $2,$3}'`
11 OS_HOSTNAME=`hostname`
12
13 echo " 系统类型：$OS_TYPE"
14 echo " 系统版本：$OS_VER"
15 echo " 系统内核：$OS_KER"
16 echo " 当前时间：$OS_TIME"
17 echo " 运行时间：$OS_RUN_TIME"
18 echo "最后重启时间：$OS_LAST_REBOOT_TIME"
19 echo " 本机名称：$OS_HOSTNAME"
20 }
21 function network(){
22
23 echo "#########################网络信息#########################"
24 INTERNET=(`ifconfig|grep ens|awk -F: '{print $1}'`) # centos6 ifconfig | grep Bcast | awk '{print $2}' | awk -F : '{print $2}'
25 for((i=0;i<`echo ${#INTERNET[*]}`;i++))
26 do
27 OS_IP=`ifconfig ${INTERNET[$i]}|head -2|grep inet|awk '{print $2}'`
28 echo " 本机IP：${INTERNET[$i]}:$OS_IP"
29 done
30 curl -I http://www.baidu.com &>/dev/null # 测试
31 if [ $? -eq 0 ]
32 then echo " 访问外网：成功"
33 else
34 echo " 访问外网：失败"
35 fi
36 }
37
38 function hardware(){
39
40 echo "#########################硬件信息#########################"
41 CPUID=`grep "physical id" /proc/cpuinfo |sort|uniq|wc -l`
42 CPUCORES=`grep "cores" /proc/cpuinfo|sort|uniq|awk -F: '{print $2}'`
43 CPUMODE=`grep "model name" /proc/cpuinfo|sort|uniq|awk -F: '{print $2}'`
44
45 echo " CPU数量: $CPUID"
46 echo " CPU核心:$CPUCORES"
47 echo " CPU型号:$CPUMODE"
48
49 MEMTOTAL=`free -m|grep Mem|awk '{print $2}'`
50 MEMFREE=`free -m|grep Mem|awk '{print $7}'`
51
52 echo " 内存总容量: ${MEMTOTAL}MB"
53 echo "剩余内存容量: ${MEMFREE}MB"
54
55 disksize=0
56 swapsize=`free|grep Swap|awk {'print $2'}`
57 partitionsize=(`df -T|sed 1d|egrep -v "tmpfs|sr0"|awk {'print $3'}`)
58 for ((i=0;i<`echo ${#partitionsize[*]}`;i++))
59 do
60 disksize=`expr $disksize + ${partitionsize[$i]}`
61 done
62 ((disktotal=\($disksize+$swapsize\)/1024/1024))
63
64 echo " 磁盘总容量: ${disktotal}GB"
65
66 diskfree=0
67 swapfree=`free|grep Swap|awk '{print $4}'`
68 partitionfree=(`df -T|sed 1d|egrep -v "tmpfs|sr0"|awk '{print $5}'`)
69 for ((i=0;i<`echo ${#partitionfree[*]}`;i++))
70 do
71 diskfree=`expr $diskfree + ${partitionfree[$i]}`
72 done
73
74 ((freetotal=\($diskfree+$swapfree\)/1024/1024))
75
76 echo "剩余磁盘容量：${freetotal}GB"
77 }
78
79
80 function secure(){
81 echo "#########################安全信息#########################"
82
83 countuser=(`last|grep "still logged in"|awk '{print $1}'|sort|uniq`)
84 for ((i=0;i<`echo ${#countuser[*]}`;i++))
85 do echo "当前登录用户：${countuser[$i]}"
86 done
87
88 md5sum -c --quiet /opt/passwd.db &>/dev/null
89 if [ $? -eq 0 ]
90 then echo " 用户异常：否"
91 else echo " 用户异常：是"
92 fi
93 }
94
95 function chksys(){
96 system
97 network
98 hardware
99 secure
100 }