查看系统信息（脚本）

#!/bin/bash
#linux.info.sh
#系统信息查看

[ -f /usr/sbin/dmidecode ] && { dmidecode | grep 'Product Name' |uniq; }

echo 
if [ -f /etc/redhat-release ];then
    cat /etc/redhat-release
elif [ -f /etc/lsb-release ];then
    awk -F '"' '/DISTRIB_DESCRIPTION/{print $2}' /etc/lsb-release
else
    awk -F'"' '/PRETTY_NAME/{print $2}'  /etc/os-release
fi
echo "kernel `uname -r`"

echo
echo "CPU"
cat /proc/cpuinfo |grep "name" |cut -f2 -d: |uniq

echo "cpu物理个数  `cat /proc/cpuinfo | grep "physical id"| sort| uniq| wc -l`"
echo "cpu逻辑个数  `cat /proc/cpuinfo| grep "processor"| wc -l`"

echo 
#echo "内存  `free -g |awk '/Mem/{print $2" G"}'`"
echo "内存  `free -m |awk '/Mem/{printf ("%.2f\n", $2/1024)}'`GB"
#内存数量、频率
if [ -e /usr/sbin/dmidecode ];then
dmidecode -t memory |awk '/Size.*MB/{print "条 "$2/1024 "GB"}' |uniq -dc
dmidecode|grep -A16 "Memory Device"|awk '/Speed.*MHz/{print "频率 "$2 $3}' |uniq -dc
dmidecode -t memory |awk '/DDR/{print "接口 "$2}' |uniq -dc
echo "插槽数量    `dmidecode -t memory |grep Size |wc -l`"
fi

echo 
echo "Disk"
lsblk |awk '/disk/{print $1" "$4}'
df -hlT |egrep '^/dev/|^Filesystem|/$' |egrep -v '^/dev/loop'
echo