检查系统信息的简单脚本

#!/bin/bash
#检查系统信息
#2016-09-21
#Version 2.0.1

#检查当前用户是否为root
if [ `id -u` -ne 0  ]
then
echo '请使用root用户执行脚本!';
exit 11;
fi

release_file='/etc/redhat-release';
smart_bin=`which smartctl 2>/dev/null`;
dmi_bin=`which dmidecode  2>/dev/null`;
#smart=null;
diskinfo=(`fdisk -l|awk 'FS="[ :,.]+"{if($0~/Disk \/.+\/[a-z]+:/){print $2":"$3$5}}'`);

#检查是否安装"smartmontools","smartmontools"包含smartctl
if [ -n $smart_bin  ]
then
smart=true;
fi

#检查是否安装"dmidecode"
if [ -n $dmi_bin  ]
then
dmi=true;
fi

if [ -e $release_file ]
then
echo '操作系统名称:'`cat $release_file`;
fi

if [ $dmi == 'true'  ]
then
echo -ne '主板信息:\n';
dmidecode -t 2|awk 'FS=":"{if($0~/Manufacturer/ && $2 !~/Not Specified/){manufacturer=$2;}if($0~/Product Name/ && $2 !~/Not Specified/){product=$2;}}END{print  manufacturer" --"product;}';
echo -ne '内存信息:\n';
dmidecode -t 17|awk 'FS=":"{if($0 ~"Size:" && $2 !~ / No Module Installed/){num=NR+9}if(NR>num){b=0}else{b=1}}b{if($0 ~/Size:/ || $0 ~/[^ ]Speed:/ || $0 ~/Manufacturer:/){gsub(/\s/,"",$0);print $0}}';

fi

echo -ne '处理器信息:\n';
awk 'FS=": "{if($1~"model name"){print $2}}' /proc/cpuinfo;

echo -ne '磁盘驱动:\n';
#输出数组中的内容
for dev in ${diskinfo[*]}
do
dev_num=`echo $dev|cut -d':' -f1`;
dev_type=`smartctl -i $dev_num|awk 'FS=":"{if($1~"Device Model"){print $2}}'`;

if [ $smart == 'true'  ]
then
echo -ne $dev_type"\n";
echo -ne $dev"\n";
else
echo -ne $dev"\n";
fi

done

echo -ne '网络适配器:\n';
lspci|awk 'FS=":"{if($0~"Ethernet controller"){print $3}}'

echo

if [ $smart == 'null' -o $dmi == 'null'  ]
then
echo '如需获取详细信息请使用"smartmontools"和"dmidecode"工具'
fi