推荐一个获取Linux服务器（ubuntu、centos已测试）信息的Shell脚本

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 $2}' |sed 's/^[ t]*//g')
echo -e "Number of CPU coresn${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} MBn${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}"