获取服务器信息的Shell脚本分享（ubuntu、centos测试通过）

此脚本已经在ubuntu以及centos版本上测试通过，脚本如下：

#!/bin/bash

Line='==========='
#linux发行版名称

if [[ -f /usr/bin/lsb_release ]]; then 

OS=$(/usr/bin/lsb_release -a |grep Description |awk -F : '{print $2}' |sed 's/^[ \t]*//g')

else 

OS=$(cat /etc/issue |sed -n '1p') 

fi
echo -e "${Line}\nOS:\n${OS}\n${Line}"
######################################################################################################
#查看系统是否为64位：uname -m，若出现x86_64，则为64位

OS_version=$(uname -m)

echo -e "OS_version:\n${OS_version}\n${Line}"


#系统内核版本 

kernel_version=$(uname -r) 

echo -e "Kernel_version:\n${kernel_version}\n${Line}"
#cpu型号

CPU=$(grep 'model name' /proc/cpuinfo |uniq |awk -F : '{print $2}' |sed 's/^[ \t]*//g' |sed 's/ \+/ /g') 

echo -e "CPU model:\n${CPU}\n${Line}"
#物理cpu个数

Counts=$(grep 'physical id' /proc/cpuinfo |sort |uniq |wc -l)

echo -e "Total of physical CPU:\n${Counts}\n${Line}"
#物理cpu内核数

Cores=$(grep 'cpu cores' /proc/cpuinfo |uniq |awk -F : '{print $2}' |sed 's/^[ \t]*//g')

echo -e "Number of CPU cores\n${Cores}\n${Line}"
#逻辑cpu个数 

PROCESSOR=$(grep 'processor' /proc/cpuinfo |sort |uniq |wc -l)

echo -e "Number of logical CPUs:\n${PROCESSOR}\n${Line}"
#查看CPU当前运行模式是64位还是32位

Mode=$(getconf LONG_BIT) 

echo -e "Present Mode Of CPU:\n${Mode}\n${Line}"


#查看CPU是否支持64位技术：grep 'flags' /proc/cpuinfo，若flags信息中包含lm字段，则支持64位

Numbers=$(grep 'lm' /proc/cpuinfo |wc -l) 

if (( ${Numbers} > 0)); then lm=64 

else lm=32 

fi

echo -e "Support Mode Of CPU:\n${lm}\n${Line}"

######################################################################
#Memtotal 内存总大小

Total=$(cat /proc/meminfo |grep 'MemTotal' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')

echo -e "Total Memory:\n${Total}\n${Line}"
#系统支持最大内存 

Max_Capacity=$(dmidecode -t memory -q |grep 'Maximum Capacity' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')

echo -e "Maxinum Memory Capacity:\n${Max_Capacity}\n${Line}"
#查看内存类型、频率、条数、最大支持内存等信息：dmidecode -t memory，或dmidecode | grep -A16 "Memory Device$"

#下面为统计内存条数

Number=$(dmidecode | grep -A16 "Memory Device$" |grep Size|sort |sed 's/^[ \t]*//g'| grep -v 'No Module Installed' | wc -l)

echo -e "Number of Physical Memory:\n${Number}\n${Line}"


#SwapTotal swap分区总大小

SwapTotal=$(cat /proc/meminfo |grep 'SwapTotal' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')

echo -e "Total Swap:\n${SwapTotal}\n${Line}"
#Buffers size 

Buffers=$(cat /proc/meminfo |grep 'Buffers' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')

echo -e "Buffers:\n${Buffers}\n${Line}"
#Cached size

Cached=$(cat /proc/meminfo |grep '\<Cached\>' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')

echo -e "Cached:\n${Cached}\n${Line}"
#空闲内存 + buffers/cache

Available=$(free -m |grep - |awk -F : '{print $2}' |awk '{print $2}')

echo -e "Available Memory:\n${Available} MB\n${Line}"
#显示硬盘，以及大小 

Disk=$(fdisk -l |grep 'Disk' |awk -F , '{print $1}' | sed 's/Disk identifier.*//g' | sed '/^$/d')

echo -e "Amount Of Disks:\n${Disk}\n${Line}"
#各挂载分区使用情况

Partion=$(df -hlP |sed -n '2,$p')

echo -e "Usage Of partions:\n${Partion}\n${Line}"

----------------------------------------------------------------------------------------
测试结果展示：

===========

OS:

Red Hat Enterprise Linux Server release 5.6 (Tikanga)

===========

OS_version:

i686

===========

Kernel_version:

2.6.18-238.el5

===========

CPU model:

AMD A6-3400M APU with Radeon(tm) HD Graphics

===========

Total of physical CPU:

2

===========

Number of CPU cores

2

===========

Number of logical CPUs:

4

===========

Present Mode Of CPU:

32

===========

Support Mode Of CPU:

64

===========

Total Memory:

514744 kB

===========

Maxinum Memory Capacity:

1024 GB

===========

Number of Physical Memory:

1

===========

Total Swap:

1044216 kB

===========

Buffers:

101936 kB

===========

Cached:

267356 kB

===========

Available Memory:

369 MB

===========

Amount Of Disks:

Disk /dev/sda: 107.3 GB

===========

Usage Of partions:

/dev/sda3 96G 4.6G 87G 6% /

/dev/sda1 99M 12M 83M 13% /boot

tmpfs 252M 0 252M 0% /dev/shm

/dev/hdc 3.0G 3.0G 0 100% /media/RHEL_5.6 i386 DVD

===========