怎么用shell脚本整合json数值获取硬件信息

环境

需要安装必要的软件，这里我为了保障脚本合理的进行，使用的是真机环境，没有使用虚拟机

[root@sys-idc-pxe01 ~]# yum install jq lsscsi MegaCliLoaded plugins: fastestmirror, securityLoading mirror speeds from cached hostfileSetting up Install ProcessPackage jq-1.3-2.el6.x86_64 already installed and latest versionPackage lsscsi-0.23-3.el6.x86_64 already installed and latest versionPackage MegaCli-8.00.40-1.i386 already installed and latest versionNothing to do

脚本内容

我的shell风格比较偏向模块化，所以使用函数会多一些，这样方便理解，相信大家也能看得懂。

我不太喜欢python风格的代码格式（虽然我python写的也很不错），看起来给人的感觉太紧凑，太乱。据说是前辈们出版书籍的时候为了省纸，才出现的那种风格，后辈怀着对前辈的敬仰就延续了下来，其实前辈也没有那么写过那种风格的代码，不知道是不是真的。

[root@sys-idc-pxe01 ~]# cat ./get_server_info.sh#!/bin/sh#description: get server hardware info#author: liuxin#date: 20180122#需要安装jq工具 yum install jq#用于存放该服务器的所有信息，个人喜欢把全局变量写到外面#写到函数里面，没有加local的变量也是全局变量INFO="{}"#定义一个工具函数，用于生成json数值，后面将会频繁用到function create_json(){ #utility function local key=$1 local value="$2" local json="" #if value is string if [ -z "$(echo "$value" |egrep "\[|\]|\{|\}")" ] then   json=$(jq -n {"$key":"\"$value\""}) #if value is json, object elif [ "$(echo "$value" |jq -r type)" == "object" ] then   json=$(jq -n {"$key":"$value"}) #if value is array elif [ "$(echo "$value" |jq -r type)" == "array" ] then   json=$(jq -n "{$key:$value}") else   echo "value type error..."   exit 1   return 0 fi echo $json return 0}#获取CPU信息function get_cpu(){ #获取cpu信息，去掉空格和制表符和空行，以便于for循环 local cpu_model_1=$(dmidecode -s processor-version |grep '@' |tr -d " " |tr -s "\n" |tr -d "\t") local cpu_info="{}" local i=0 #因为去掉了空格和制表符，以下默认使用换行符分隔 for line in $(echo "$cpu_model_1") do   local cpu_model="$line"   local cpu1=$(create_json "cpu_model" "$cpu_model")   #获取每块cpu的信息，这里只记录了型号   local cpu=$(create_json "cpu_$i" "$cpu1")   local cpu_info=$(jq -n "$cpu_info + $cpu")   i=$[ $i + 1] done #将cpu的信息整合成一个json，key是cpu local info=$(create_json "cpu" "$cpu_info") #将信息加入到全局变量中 INFO=$(jq -n "$INFO + $info") return 0}function get_mem(){ #generate json {Locator:{sn:sn,size:size}} local mem_info="{}" #获取每个内存的信息，包括Size:|Locator:|Serial Number: local mem_info_1=$(dmidecode -t memory |egrep 'Size:|Locator:|Serial Number:' |grep -v 'Bank Locator:' |awk ' {   if (NR%3==1 && $NF=="MB")   {     size=$2;     getline (NR+1);     locator=$2;     getline (NR+2);     sn=$NF;     printf("%s,%s,%s\n",locator,size,sn)   } }') #根据上面的信息，将信息过滤并整合成json local i=0 for line in $(echo "$mem_info_1") do   local locator=$(echo $line |awk -F , '{print $1}')   local      sn=$(echo $line |awk  -F , '{print $3}')   local    size=$(echo $line |awk -F , '{print $2}')   local mem1=$(create_json "locator" "$locator")   local mem2=$(create_json "sn" "$sn")   local mem3=$(create_json "size" "$size")   local mem4=$(jq -n "$mem1 + $mem2 + $mem3")   #每条内存的信息，key是内存从0开始的序号   local mem=$(create_json "mem_$i" "$mem4")   #将这些内存的信息组合到一个json中   mem_info=$(jq -n "$mem_info + $mem")   i=$[ $i + 1 ] done #给这些内存的信息设置key，mem local info=$(create_json "mem" "$mem_info") INFO=$(jq -n "$INFO + $info") return 0}function get_megacli_disk(){ #设置megacli工具的路径，此条可以根据情况更改 local raid_tool="/opt/MegaRAID/MegaCli/MegaCli64" #将硬盘信息获取，保存下来，省去每次都执行的操作 $raid_tool pdlist aall >/tmp/megacli_pdlist.txt local disk_info="{}" #获取硬盘的必要信息 local disk_info_1=$(cat /tmp/megacli_pdlist.txt |egrep 'Enclosure Device ID:|Slot Number:|PD Type:|Raw Size:|Inquiry Data:|Media Type:'|awk '{ if(NR%6==1 && $1$2=="EnclosureDevice") {   E=$NF;   getline (NR+1);   S=$NF;   getline (NR+2);   pdtype=$NF;   getline (NR+3);   size=$3$4;   getline (NR+4);   sn=$3$4$5$6;   getline (NR+5);   mediatype=$3$4$5$6;   printf("%s,%s,%s,%s,%s,%s\n",E,S,pdtype,size,sn,mediatype) }}') #将获取到的硬盘信息进行整合，生成json local i=0 for line in $(echo $disk_info_1) do   #local       key=$(echo $line |awk -F , '{printf("ES%s_%s\n",$1,$2)}')   local         E=$(echo $line |awk -F , '{print $1}')   local         S=$(echo $line |awk -F , '{print $2}')   local    pdtype=$(echo $line |awk -F , '{print $3}')   local      size=$(echo $line |awk -F , '{print $4}')   local        sn=$(echo $line |awk -F , '{print $5}')   local mediatype=$(echo $line |awk -F , '{print $6}')   local disk1=$(create_json "pdtype" "$pdtype")   local disk1_1=$(create_json "enclosure_id" "$E")   local disk1_2=$(create_json "slot_id" "$S")   local disk2=$(create_json "size" "$size")   local disk3=$(create_json "sn" "$sn")   local disk4=$(create_json "mediatype" "$mediatype")   local disk5=$(jq -n "$disk1 + $disk1_1 + $disk1_2 + $disk2 + $disk3 + $disk4")   local disk=$(create_json "disk_$i" "$disk5")   disk_info=$(jq -n "$disk_info + $disk")   i=$[ $i + 1 ] done #echo $disk_info local info=$(create_json "disk" "$disk_info") INFO=$(jq -n "$INFO + $info") return 0}function get_hba_disk(){ #对于hba卡的硬盘，使用smartctl获取硬盘信息 local disk_tool="smartctl" local disk_info="{}" #lsscsi 需要使用yum install lsscsi 安装 local disk_info_1=$(lsscsi -g |grep -v 'enclosu' |awk '{printf("%s,%s,%s,%s\n",$1,$2,$(NF-1),$NF)}') local i=0 for line in $(echo $disk_info_1) do   local         E=$(echo $line |awk -F , '{print $1}' |awk -F ':' '{print $1}' |tr -d '\[|\]')   local         S=$(echo $line |awk -F , '{print $NF}' |egrep -o [0-9]*)   local        sd=$(echo $line |awk -F , '{print $(NF-1)}')   $disk_tool -i $sd >/tmp/disk_info.txt   local    pdtype="SATA"   if [ "$(cat /tmp/disk_info.txt |grep 'Transport protocol:' |awk '{print $NF}')" == "SAS" ]   then   local    pdtype="SAS"   fi   local      size=$(cat /tmp/disk_info.txt |grep 'User Capacity:' |awk '{printf("%s%s\n",$(NF-1),$NF)}' |tr -d '\[|\]')   local        sn=$(cat /tmp/disk_info.txt |grep 'Serial Number:' |awk '{print $NF}')   local mediatype="disk"   local disk1=$(create_json "pdtype" "$pdtype")   local disk1_1=$(create_json "enclosure_id" "$E")   local disk1_2=$(create_json "slot_id" "$S")   local disk2=$(create_json "size" "$size")   local disk3=$(create_json "sn" "$sn")   local disk4=$(create_json "mediatype" "$mediatype")   local disk5=$(jq -n "$disk1 + $disk1_1 + $disk1_2 + $disk2 + $disk3 + $disk4")   local disk=$(create_json "disk_$i" "$disk5")   disk_info=$(jq -n "$disk_info + $disk")   i=$[ $i + 1 ] done #echo $disk_info local info=$(create_json "disk" "$disk_info") INFO=$(jq -n "$INFO + $info") return 0}function get_disk(){ #根据获取到的硬盘控制器类型，来判断使用什么工具采集硬盘信息 if [ "$(echo "$INFO" |jq -r .disk_ctrl.disk_ctrl_0.type)" == "raid" ] then   get_megacli_disk elif [ "$(echo "$INFO" |jq -r .disk_ctrl.disk_ctrl_0.type)" == "hba" ] then   get_hba_disk else   local info=$(create_json "disk" "error")   INFO=$(jq -n "$INFO + $info") fi #hp机器比较特殊，这里我没有做hp机器硬盘信息采集，有兴趣的朋友可以自行添加上 #if hp machine return 0}function get_diskController(){ local disk_ctrl="{}" #if LSI Controller local disk_ctrl_1="$(lspci -nn |grep LSI)" local i=0  #以换行符分隔 IFS_OLD=$IFS && IFS=$'\n' for line in $(echo "$disk_ctrl_1") do   #echo $line   local   ctrl_id=$(echo "$line" |awk -F ']:' '{print $1}' |awk '{print $NF}' |tr -d '\[|\]')   case "$ctrl_id" in   #根据控制器的id或进行判断是raid卡还是hba卡，因为品牌比较多，后续可以在此处进行扩展添加   0104)     # 获取Logic以后的字符串，并进行拼接     local ctrl_name=$(echo "${line##*"Logic"}" |awk '{printf("%s_%s_%s\n",$1,$2,$3)}')     local     ctrl1=$(create_json "id" "$ctrl_id")     local     ctrl2=$(create_json "type" "raid")     local     ctrl3=$(create_json "name" "$ctrl_name")     ;;   0100|0107)     local ctrl_name=$(echo "${line##*"Logic"}" |awk '{printf("%s_%s_%s\n",$1,$3,$4)}')     local     ctrl1=$(create_json "id" "$ctrl_id")     local     ctrl2=$(create_json "type" "hba")     local     ctrl3=$(create_json "name" "$ctrl_name")     ;;   *)     local     ctrl1=$(create_json "id" "----")     local     ctrl2=$(create_json "type" "----")     local     ctrl3=$(create_json "name" "----")     ;;   esac   local ctrl_tmp=$(jq -n "$ctrl1 + $ctrl2 + $ctrl3")   local ctrl=$(create_json "disk_ctrl_$i" "$ctrl_tmp")   disk_ctrl=$(jq -n "$disk_ctrl + $ctrl")   i=$[ $i + 1 ] done IFS=$IFS_OLD local info=$(create_json "disk_ctrl" "$disk_ctrl") INFO=$(jq -n "$INFO + $info") return 0}function get_netcard(){ local netcard_info="{}" local netcard_info_1="$(lspci -nn |grep Ether)" local i=0 #echo "$netcard_info_1" IFS_OLD=$IFS && IFS=$'\n' for line in $(echo "$netcard_info_1") do   local     net_id=$(echo $line |egrep -o '[0-9a-z]{4}:[0-9a-z]{4}')   local   net_id_1=$(echo $net_id |awk -F : '{print $1}')   case "$net_id_1" in   8086)     local net_name=$(echo "${line##*": "}" |awk '{printf("%s_%s_%s_%s\n",$1,$3,$4,$5)}')     local     type=$(echo $line |egrep -o SFP || echo "TP")     local     net1=$(create_json "id" "$net_id")     local     net2=$(create_json "name" "$net_name")     local     net3=$(create_json "type" "$type")     ;;   14e4)     local net_name=$(echo "${line##*": "}" |awk '{printf("%s_%s_%s_%s\n",$1,$3,$4,$5)}')     local     type=$(echo $line |egrep -o SFP || echo "TP")     local     net1=$(create_json "id" "$net_id")     local     net2=$(create_json "name" "$net_name")     local     net3=$(create_json "type" "$type")     ;;   *)     local net_name=$(echo "${line##*": "}" |awk '{printf("%s_%s_%s_%s\n",$1,$3,$4,$5)}')     local     type=$(echo $line |egrep -o SFP || echo "TP")     local     net1=$(create_json "id" "$net_id")     local     net2=$(create_json "name" "$net_name")     local     net3=$(create_json "type" "$type")     ;;   esac   local net1=$(jq -n "$net1 + $net2 + $net3")   #echo $net   local net2=$(create_json "net_$i" "$net1")   netcard_info=$(jq -n "$netcard_info + $net2")   i=$[ $i + 1 ] done IFS=$IFS_OLD local info=$(create_json "net" "$netcard_info") INFO=$(jq -n "$INFO + $info") return 0}function get_server(){ local product=$(dmidecode -s system-product-name |grep -v '^#' |tr -d ' ' |head -n1) local manufacturer=$(dmidecode -s system-manufacturer |grep -v '^#' |tr -d ' ' |head -n1) local server1=$(create_json "manufacturer" "$manufacturer") local server2=$(create_json "product" "$product") local server3=$(jq -n "$server1 + $server2") local info=$(create_json "basic_info" "$server3") INFO=$(jq -n "$INFO + $info") return 0}ALL_INFO=""function get_all(){ #因为硬盘信息的获取依赖硬盘控制器的信息，所以get_diskController要放到get_disk前面 get_server get_cpu get_mem get_diskController get_disk get_netcard local sn=$(dmidecode -s system-serial-number |grep -v '^#' |tr -d ' ' |head -n1) ALL_INFO=$(create_json "$sn" "$INFO") return 0}function main(){ get_all echo $ALL_INFO return 0}#-------------------------------------------------main