Linux巡检脚本，兼容Redhat、Cantos、suse

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#巡检

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本文介绍了一个全面的系统健康检查脚本，用于自动化收集Linux系统的各项指标，包括系统信息、CPU状态、内存状态、磁盘状态、网络状态、服务状态等，帮助管理员快速了解系统运行状况。

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PADDR=$(ip addr show|grep ‘inet’|awk -F ‘[ :]’ ‘{print $13}’)
#环境变量PATH没设好，在cron里执行时有很多命令会找不到
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
source /etc/profile

[ $KaTeX parse error: Expected 'EOF', got '&' at position 17: \dotsid -u) -gt 0 ] &̲& echo "请用root用\dots$ (awk ‘{print $(NF-1)}’ /etc/-release)
VERSION=“2017.08.22”

#日志相关
PROGPATH=echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'
[ -f $KaTeX parse error: Expected 'EOF', got '&' at position 12: PROGPATH ] &̲& PROGPATH="." \dots$ PROGPATH/log"
[ -e $LOGPATH ] || mkdir $L O G P A T H R E S U L T F I L E = "$ LOGPATH/HostDailyCheck-$IPADDR-date +%Y%m%d.txt"

#定义报表的全局变量
report_DateTime=""    #日期 ok
report_Hostname=""    #主机名 ok
report_OSRelease=""    #发行版本 ok
report_Kernel=""    #内核 ok
report_Language=""    #语言/编码 ok
report_LastReboot=""    #最近启动时间 ok
report_Uptime=""    #运行时间（天） ok
report_CPUs=""    #CPU数量 ok
report_CPUType=""    #CPU类型 ok
report_Arch=""    #CPU架构 ok
report_MemTotal=""    #内存总容量(MB) ok
report_MemFree=""    #内存剩余(MB) ok
report_MemUsedPercent=""    #内存使用率% ok
report_DiskTotal=""    #硬盘总容量(GB) ok
report_DiskFree=""    #硬盘剩余(GB) ok
report_DiskUsedPercent=""    #硬盘使用率% ok
report_InodeTotal=""    #Inode总量 ok
report_InodeFree=""    #Inode剩余 ok
report_InodeUsedPercent=""    #Inode使用率 ok
report_IP=""    #IP地址 ok
report_MAC=""    #MAC地址 ok
report_Gateway=""    #默认网关 ok
report_DNS=""    #DNS ok
report_Listen=""    #监听 ok
report_Selinux=""    #Selinux ok
report_Firewall=""    #防火墙 ok
report_USERs=""    #用户 ok
report_USEREmptyPassword=""   #空密码用户 ok
report_USERTheSameUID=""      #相同ID的用户 ok
report_PasswordExpiry=""    #密码过期（天） ok
report_RootUser=""    #root用户 ok
report_Sudoers=""    #sudo授权 ok
report_SSHAuthorized=""    #SSH信任主机 ok
report_SSHDProtocolVersion=""    #SSH协议版本 ok
report_SSHDPermitRootLogin=""    #允许root远程登录 ok
report_DefunctProsess=""    #僵尸进程数量 ok
report_SelfInitiatedService=""    #自启动服务数量 ok
report_SelfInitiatedProgram=""    #自启动程序数量 ok
report_RuningService=""           #运行中服务数 ok
report_Crontab=""    #计划任务数 ok
report_Syslog=""    #日志服务 ok
report_SNMP=""    #SNMP OK
report_NTP=""    #NTP ok
report_JDK=""    #JDK版本 ok
function version(){
    echo “”
    echo “”
    echo "系统巡检脚本：Version $KaTeX parse error: Expected 'EOF', got '}' at position 10: VERSION" }̲ function get\dots$ (grep “physical id” /proc/cpuinfo| sort | uniq | wc -l)
    Virt_CPUs= $grep "processor" /proc/cpuinfo | wc -l)     CPU_Kernels=$ (grep “cores” /proc/cpuinfo|uniq| awk -F ': ’ '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲') CPU_Type\dots$ (grep “model name” /proc/cpuinfo | awk -F ': ’ '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲' | sort | uniq\dots$ (uname -m)
    echo “物理CPU个数: $Physical_CPUs"     echo "逻辑CPU个数:$ Virt_CPUs”
    echo “每CPU核心数: $CPU_Kernels"     echo "    CPU型号:$ CPU_Type”
    echo "    CPU架构: $KaTeX parse error: Expected 'EOF', got '#' at position 15: CPU_Arch" #̲报表信息 report\dots$ Virt_CPUs    #CPU数量
    report_CPUType= $KaTeX parse error: Expected 'EOF', got '#' at position 11: CPU_Type #̲CPU类型 repor\dots$ CPU_Arch     #CPU架构
}

function getMemStatus(){
    echo “”
    echo “”
    echo “############################ 内存检查 ############################”
    if [[ $KaTeX parse error: Expected 'EOF', got '#' at position 80: \dots -h fi #̲报表信息 MemTot\dots$ (grep MemTotal /proc/meminfo| awk '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲') #KB Mem\dots$ (grep MemFree /proc/meminfo| awk '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲') #KB l\dots$ (awk "BEGIN {if( $KaTeX parse error: Can't use function '\"' in math mode at position 37: …00}else{printf \̲"̲%.2f\",$ MemUsed100/ $KaTeX parse error: Expected 'EOF', got '}' at position 9: MemTotal}̲}") report_\dots$ ((MemTotal/1024))"“MB”        #内存总容量(MB)
    report_MemFree=" $KaTeX parse error: Expected 'EOF', got '#' at position 32: \dots""MB" #̲内存剩余(MB) re\dots$ (awk “BEGIN {if( $KaTeX parse error: Can't use function '\"' in math mode at position 37: …00}else{printf \̲"̲%.2f\",$ MemUsed100/$MemTotal}}")""%"   #内存使用率%
}

function getDiskStatus(){
    echo “”
    echo “”
    echo “############################ 磁盘检查 ############################”
    df -hiP | sed ‘s/Mounted on/Mounted/’> /tmp/inode
    df -hTP | sed ‘s/Mounted on/Mounted/’> /tmp/disk
    join /tmp/disk /tmp/inode | awk '{print $1,$2,"|",$3,$4,$5,$6,"|",$8,$9,$10,$11,"|", $KaTeX parse error: Expected 'EOF', got '}' at position 3: 12}̲'| column -t \dots$ (df -TP | sed ‘1d’ | awk ' $KaTeX parse error: Expected 'EOF', got '#' at position 21: \dotsmpfs"{print}') #̲KB disktota\dots$ (echo “$diskdata” | awk '{total+= $KaTeX parse error: Expected 'EOF', got '}' at position 2: 3}̲END{print total\dots$ (echo “$diskdata” | awk '{total+= $KaTeX parse error: Expected 'EOF', got '}' at position 2: 4}̲END{print total\dots$ ((disktotal-diskused)) #KB
    diskusedpercent=$(echo $disktotal $diskused | awk '{if($1==0){printf 100}else{printf “%.2f”,$2100/ $KaTeX parse error: Expected 'EOF', got '}' at position 2: 1}̲}') inoded\dots$ (df -iTP | sed ‘1d’ | awk ' $2! = " t m p f s " p r i n t^{'}) i n o d e t o t a l =$ (echo “$inodedata” | awk '{total+= $KaTeX parse error: Expected 'EOF', got '}' at position 2: 3}̲END{print total\dots$ (echo “$inodedata” | awk '{total+= $KaTeX parse error: Expected 'EOF', got '}' at position 2: 4}̲END{print total\dots$ ((inodetotal-inodeused))
    inodeusedpercent=$(echo $inodetotal $inodeused | awk '{if($10){printf 100}else{printf “%.2f”,$2100/ $KaTeX parse error: Expected 'EOF', got '}' at position 2: 1}̲}') report_\dots$ ((disktotal/1024/1024))“GB”   #硬盘总容量(GB)
    report_DiskFree= $KaTeX parse error: Expected 'EOF', got '#' at position 32: \dots1024))"GB" #̲硬盘剩余(GB) re\dots$ diskusedpercent""%"    #硬盘使用率%
    report_InodeTotal= $KaTeX parse error: Expected 'EOF', got '#' at position 30: \dots000))"K" #̲Inode总量 rep\dots$ ((inodefree/1000))“K”         #Inode剩余
    report_InodeUsedPercent=" $KaTeX parse error: Expected 'EOF', got '}' at position 36: \dots #Inode使用率% }̲ function get\dots$ (grep “LANG=” /etc/sysconfig/i18n | grep -v “^#” | awk -F ‘"’ '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲')" else \dots$ LANG
    fi
    export LANG=“en_US.UTF-8”
    Release= $(c a t / e t c / r e d h a t - r e l e a s e 2 > / d e v / n u l l) K e r n e l =$ (uname -r)
    OS= $(u n a m e - o) H o s t n a m e =$ (uname -n)
    LastReboot=$(who -b | awk '{print $3, $KaTeX parse error: Expected 'EOF', got '}' at position 2: 4}̲') uptime=$ (uptime | sed 's/.up ([^,]), ./\1/’)
    echo "     系统： $O S " e c h o " 发行版本：$ Release"
    echo "     内核： $K e r n e l " e c h o " 主机名：$ Hostname"
    echo " SELinux： $S E L i n u x " e c h o " 语言 / 编码：$ default_LANG"
    echo " 当前时间： $(d a t e +^{'} e c h o " 最后启动：$ LastReboot"
    echo " 运行时间： $KaTeX parse error: Expected 'EOF', got '#' at position 13: uptime" #̲报表信息 report\dots$ (date +"%F %T") #日期
    report_Hostname=“ $KaTeX parse error: Expected 'EOF', got '#' at position 17: \dotsostname" #̲主机名 report_\dots$ Release”       #发行版本
    report_Kernel=“ $KaTeX parse error: Expected 'EOF', got '#' at position 19: \dotsnel" #̲内核 report_L\dots$ default_LANG”   #语言/编码
    report_LastReboot=“ $KaTeX parse error: Expected 'EOF', got '#' at position 15: LastReboot" #̲最近启动时间 repo\dots$ uptime”           #运行时间（天）
    report_Selinux=“ $S E L i n u x " e x p o r t L A N G = "$ default_LANG”

}

function getServiceStatus(){
    echo “”
    echo “”
    echo “############################ 服务检查 ############################”
    echo “”
    if [[ $c e n t o s V e r s i o n > 7]]; t h e n c o n f =$ (systemctl list-unit-files --type=service --state=enabled --no-pager | grep “enabled”)
        process= $KaTeX parse error: Expected 'EOF', got '#' at position 92: \dotsvice") #̲报表信息 re\dots$ (echo “ $KaTeX parse error: Expected 'EOF', got '#' at position 23: \dots wc -l)" #̲自启动服务数量 \dots$ (echo “ $KaTeX parse error: Expected 'EOF', got '#' at position 30: \dots-l)" #̲运行中服务数量 els\dots$ (/sbin/chkconfig | grep -E “:on|:启用”)
        process= $KaTeX parse error: Expected 'EOF', got '#' at position 78: \dots正在运行") #̲报表信息 re\dots$ (echo “ $KaTeX parse error: Expected 'EOF', got '#' at position 23: \dots wc -l)" #̲自启动服务数量 \dots$ (echo “ $KaTeX parse error: Expected 'EOF', got '#' at position 30: \dots-l)" #̲运行中服务数量 fi \dots$ conf” | column -t
    echo “”
    echo “正在运行的服务”
    echo “--------------”
    echo “ $KaTeX parse error: Expected 'EOF', got '}' at position 12: process" }̲ function g\dots$ (grep -v “^#” /etc/init.d/boot.local| sed '/^ $KaTeX parse error: Expected 'EOF', got '#' at position 6: /d') #̲ echo "$ conf”
    #报表信息
    report_SelfInitiatedProgram=”$(echo $conf | wc -l)”    #自启动程序数量
}

function getLoginStatus(){
    echo “”
    echo “”
    echo “############################ 登录检查 ############################”
    last | head
}

function getNetworkStatus(){
    echo “”
    echo “”
    echo “############################ 网络检查 ############################”
    if [[ $centosVersion < 7 ]];then
        /sbin/ifconfig -a | grep -v packets | grep -v collisions | grep -v inet6
    else
        #ip a
        for i in $(ip link | grep BROADCAST | awk -F: ‘{print $2}’);do ip add show $i | grep -E “BROADCAST|global”| awk '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲' | tr '\n' ' '…$ (ip route | grep default | awk '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 3}̲') DNS=$ (grep nameserver /etc/resolv.conf| grep -v “#” | awk ‘{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲' | tr '\n' ','…$ //’)
    echo “”
    echo “网关： $G A T E W A Y " e c h o " D N S ：$ DNS”
    #报表信息
    IP=$(ip -f inet addr | grep -v 127.0.0.1 | grep inet | awk ‘{print $NF, $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲' | tr '\n' ','…$ //’)
    MAC=$(ip link | grep -v “LOOPBACK|loopback” | awk ‘{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲' | sed 'N;s/\n…$ //’)
    report_IP=“ $KaTeX parse error: Expected 'EOF', got '#' at position 16: IP" #̲IP地址 report\dots$ MAC            #MAC地址
    report_Gateway=“ $KaTeX parse error: Expected 'EOF', got '#' at position 11: GATEWAY" #̲默认网关 report\dots$ DNS”          #DNS
}

function getListenStatus(){
    echo “”
    echo “”
    echo “############################ 监听检查 ############################”
    TCPListen= $(s s - n t u l ∣ c o l u m n - t) e c h o "$ TCPListen”
    #报表信息
    report_Listen=“ $(e c h o "$ TCPListen”| sed ‘1d’ | awk ‘/tcp/ {print $5}’ | awk -F: ‘{print $NF}’ | sort | uniq | wc -l)”
}

function getCronStatus(){
    echo “”
    echo “”
    echo “############################ 计划任务检查 ########################”
    Crontab=0
    for shell in $(grep -v “/sbin/nologin” /etc/shells);do
        for user in $(g r e p "$ shell" /etc/passwd| awk -F: ‘{print $1}’);do
            crontab -l -u $KaTeX parse error: Expected 'EOF', got '&' at position 19: \dotsr >/dev/null 2>&̲1 s\dots$ ?
            if [ $s t a t u s - e q 0]; t h e n e c h o "$ user"
                echo “--------”
                crontab -l -u $u s e r l e t C r o n t a b = C r o n t a b +$ (crontab -l -u $KaTeX parse error: Expected 'EOF', got '#' at position 80: \dotse done #̲计划任务 find /\dots$ (find /etc/cron* -type f | wc -l)
    #报表信息
    report_Crontab=" $KaTeX parse error: Expected 'EOF', got '#' at position 13: Crontab" #̲计划任务数 } functio\dots$ "
    [ -z “$datetime” ] && echo "错误的参数：getHowLongAgo() $* " T i m e s t a m p =$ (date +%s -d " $KaTeX parse error: Expected 'EOF', got '#' at position 15: datetime") #̲转化为时间戳 Now_\dots$ (date +%s)
    Difference_Timestamp= $(($ Now_Timestamp- $Timestamp))     days=0;hours=0;minutes=0;     sec_in_day=$ ((606024));
    sec_in_hour=$((6060));
    sec_in_minute=60
    while (( $(($ Difference_Timestamp-$sec_in_day)) > 1 ))
    do
        let Difference_Timestamp=Difference_Timestamp-sec_in_day
        let days++
    done
    while (( $(($ Difference_Timestamp- $sec_in_hour)) > 1 ))     do         let Difference_Timestamp=Difference_Timestamp-sec_in_hour         let hours++     done     echo "$ days 天 $hours 小时前"
}

function getUserLastLogin(){
    # 获取用户最近一次登录的时间，含年份
    # 很遗憾last命令不支持显示年份，只有"last -t YYYYMMDDHHMMSS"表示某个时间之间的登录，我
    # 们只能用最笨的方法了，对比今天之前和今年元旦之前（或者去年之前和前年之前……）某个用户
    # 登录次数，如果登录统计次数有变化，则说明最近一次登录是今年。
    username=$1
    : ${username:="`whoami`"}     thisYear=$ (date +%Y)
    oldesYear=$(last | tail -n1 | awk ‘{print $NF}’)
    while(( $thisYear >= $o l d e s Y e a r)); d o l o g i n B e f o r e T o d a y =$ (last $username | grep $u s e r n a m e ∣ w c - l) l o g i n B e f o r e N e w Y e a r s D a y O f T h i s Y e a r =$ (last $username -t $thisYear"0101000000" | grep $username | wc -l)
        if [ $loginBeforeToday -eq 0 ];then
            echo “从未登录过”
            break
        elif [ $loginBeforeToday -gt $l o g i n B e f o r e N e w Y e a r s D a y O f T h i s Y e a r]; t h e n l a s t D a t e T i m e =$ (last -i $KaTeX parse error: Expected '}', got 'EOF' at end of input: \dots++)printf"%s ",$ i}’)" $KaTeX parse error: Expected 'EOF', got '#' at position 11: thisYear" #̲格式如: Sat Nov 2 \dots$ (date “+%Y-%m-%d %H:%M:%S” -d “ $l a s t D a t e T i m e ") e c h o "$ lastDateTime”
            break
        else
            thisYear= $KaTeX parse error: Expected 'EOF', got '}' at position 38: \dots fi done }̲ function get\dots$ (cat /etc/passwd)"
    Modify=$(stat /etc/passwd | grep Modify | tr ‘.’ ’ ’ | awk '{print $2, $KaTeX parse error: Expected 'EOF', got '}' at position 2: 3}̲') echo "\dots$ Modify ($(getHowLongAgo $Modify))"
    echo “”
    echo “特权用户”
    echo “--------”
    RootUser=""
    for user in $(e c h o "$ pwdfile" | awk -F: ‘{print $1}’);do
        if [ $(id -u $u s e r) - e q 0]; t h e n e c h o "$ user"
            RootUser=“ $R o o t U s e r,$ user”
        fi
    done
    echo “”
    echo “用户列表”
    echo “--------”
    USERs=0
    echo “$(
    echo “用户名 UID GID HOME SHELL 最后一次登录”
    for shell in $(grep -v “/sbin/nologin” /etc/shells);do
        for username in $(g r e p "$ shell” /etc/passwd| awk -F: '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 1}̲');do \dots$ (getUserLastLogin $u s e r n a m e) " e c h o "$ pwdfile" | grep -w “ $u s e r n a m e " ∣ g r e p - w "$ shell”| awk -F: -v lastlogin=“ $(e c h o "$ userLastLogin” | tr ’ ’ ‘_’)" '{print $1,$3,$4,$6, $KaTeX parse error: Expected 'EOF', got '}' at position 12: 7,lastlogin}̲' done \dots$ (echo “ $p w d f i l e " ∣ g r e p "$ shell”| wc -l)
    done
    )" | column -t
    echo “”
    echo “空密码用户”
    echo “----------”
    USEREmptyPassword=""
    for shell in $(grep -v “/sbin/nologin” /etc/shells);do
            for user in $(e c h o "$ pwdfile" | grep " $s h e l l " ∣ c u t - d : - f 1); d o r =$ (awk -F: '$2”!!"{print $1}’ /etc/shadow | grep -w $user)
            if [ ! -z $r ];then
                echo $r U S E R E m p t y P a s s w o r d = "$ USEREmptyPassword," $r f i d o n e d o n e e c h o " " e c h o " 相同 I D 的用户 " e c h o " - - - - - - - - - - - - " U S E R T h e S a m e U I D = " " U I D s =$ (cut -d: -f3 /etc/passwd | sort | uniq -c | awk ‘$1>1{print $2}’)
    for uid in $U I D s; d o e c h o - n "$ uid";
        USERTheSameUID=" $u i d " r =$ (awk -F: ‘ORS=""; $3 = =^{'} "$ uid"’{print “:”, $KaTeX parse error: Expected 'EOF', got '}' at position 2: 1}̲' /etc/passwd) \dots$ r"
        echo “”
        USERTheSameUID="$USERTheSameUID $KaTeX parse error: Expected 'EOF', got '#' at position 18: \dots" done #̲报表信息 report\dots$ USERs"    #用户
    report_USEREmptyPassword=$(echo $'s/^,//') report_USERTheSameUID=$ (echo $U S E R T h e S a m e U I D ∣ s e d^{'} s /,$ //’)
    report_RootUser=$(echo $KaTeX parse error: Expected 'EOF', got '#' at position 29: \dotsd 's/^,//') #̲特权用户 } func\dots$ (cat /etc/passwd)"
    echo “”
    echo “密码过期检查”
    echo “------------”
    result=""
    for shell in $(grep -v “/sbin/nologin” /etc/shells);do
        for user in $(e c h o "$ pwdfile" | grep “ $shell" | cut -d: -f1);do             get_expiry_date=$ (/usr/bin/chage -l $user | grep ‘Password expires’ | cut -d: -f2)
            if [[ $get_expiry_date = ’ never’ || $get_expiry_date = ‘never’ ]];then
                printf “%-15s 永不过期\n” $u s e r r e s u l t = "$ result, $user:never"             else                 password_expiry_date=$ (date -d “ $currentdate=get_expiry_date" "+%s") current_date=$ (date “+%s”)
                diff= $(($ password_expiry_date- $current_date))                 let DAYS=$ (($diff/(606024)))
                printf “%-15s %s天后过期\n” $user $D A Y S r e s u l t = "$ result, $u s e r :$ DAYS days”
            fi
        done
    done
    report_PasswordExpiry=$(echo $KaTeX parse error: Expected 'EOF', got '#' at position 93: \dots" grep -v "#̲" /etc/login.de\dots$ (grep -v “^#” /etc/sudoers| grep -v “^Defaults” | sed '/^ $/ d^{'}) e c h o "$ conf”
    echo “”
    #报表信息
    report_Sudoers="$(echo $conf | wc -l)"
}

function getInstalledStatus(){
    echo “”
    echo “”
    echo “############################ 软件检查 ############################”
    rpm -qa --last | head | column -t
}

function getProcessStatus(){
    echo “”
    echo “”
    echo “############################ 进程检查 ############################”
    if [ $(ps -ef | grep defunct | grep -v grep | wc -l) -ge 1 ];then
        echo “”
        echo “僵尸进程”;
        echo “--------”
        ps -ef | head -n1
        ps -ef | grep defunct | grep -v grep
    fi
    echo “”
    echo “内存占用TOP10”
    echo “-------------”
    echo -e “PID %MEM RSS COMMAND
    $(ps aux | awk '{print $2, $4, $6, $KaTeX parse error: Expected 'EOF', got '}' at position 3: 11}̲' | sort -k3rn \dots$ (ps -ef | grep defunct | grep -v grep|wc -l)”
}

function getJDKStatus(){
    echo “”
    echo “”
    echo “############################ JDK检查 #############################”
    java -version 2>/dev/null
    if [ $KaTeX parse error: Expected 'EOF', got '&' at position 40: \dotsava -version 2>&̲1 fi ec\dots$ JAVA_HOME""
    #报表信息
    report_JDK="$(java -version 2>&1 | grep version | awk ‘{print $1, $KaTeX parse error: Expected 'EOF', got '}' at position 2: 3}̲' | tr -d '"')"\dots$ (getState rsyslog)"
    echo “”
    echo “/etc/rsyslog.conf”
    echo “-----------------”
    cat /etc/rsyslog.conf 2>/dev/null | grep -v “^#” | grep -v "^\ $KaTeX parse error: Expected group after '^' at position 11: " | sed '/^̲$ /d’ | column -t
    #报表信息
    report_Syslog="$(getState rsyslog)"
}
function getFirewallStatus(){
    echo “”
    echo “”
    echo “############################ 防火墙检查 ##########################”
    #防火墙状态，策略等
    if [[ $KaTeX parse error: Expected 'EOF', got '&' at position 77: \dots >/dev/null 2>&̲1 statu\dots$ ?
        if [ $status -eq 0 ];then
                s=“active”
        elif [ $status -eq 3 ];then
                s=“inactive”
        elif [ $s t a t u s - e q 4]; t h e n s = " p e r m i s s i o n d e n i e d " e l s e s = " u n k n o w n " f i e l s e s = "$ (getState iptables)"
    fi
    echo “iptables: $KaTeX parse error: Expected 'EOF', got '#' at position 134: \dots>/dev/null #̲报表信息 report\dots$ s”
}

function getSNMPStatus(){
    #SNMP服务状态，配置等
    echo “”
    echo “”
    echo “############################ SNMP检查 ############################”
    status=“ $(g e t S t a t e s n m p d) " e c h o " 服务状态：$ status”
    echo “”
    if [ -e /etc/snmp/snmpd.conf ];then
        echo “/etc/snmp/snmpd.conf”
        echo “--------------------”
        cat /etc/snmp/snmpd.conf 2>/dev/null | grep -v “^#” | sed '/^ $KaTeX parse error: Expected 'EOF', got '#' at position 16: /d' fi #̲报表信息 report\dots$ (getState snmpd)"
}

function getState(){
    if [[ $centosVersion < 7 ]];then
        if [ -e “/etc/init.d/$1” ];then
            if [ /etc/init.d/$1 status 2>/dev/null | grep -E "is running|正在运行" | wc -l -ge 1 ];then
                r=“active”
            else
                r=“inactive”
            fi
        else
            r=“unknown”
        fi
    else
        #CentOS 7+
        r="$(systemctl is-active $KaTeX parse error: Expected 'EOF', got '&' at position 5: 1 2>&̲1)" fi \dots$ r"
}

function getSSHStatus(){
    #SSHD服务状态，配置,受信任主机等
    echo “”
    echo “”
    echo “############################ SSH检查 #############################”
    #检查受信任主机
    pwdfile=" $(c a t / e t c / p a s s w d) " e c h o " 服务状态：$ (getState sshd)"
    Protocol_Version=$(cat /etc/ssh/sshd_config | grep Protocol | awk '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 2}̲') echo "SS\dots$ Protocol_Version"
    echo “”
    echo “信任主机”
    echo “--------”
    authorized=0
    for user in $(e c h o "$ pwdfile" | grep /bin/bash | awk -F: '{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 1}̲');do a\dots$ (echo “$pwdfile” | grep -w $user | awk -F: '{printf $KaTeX parse error: Expected 'EOF', got '}' at position 25: \dotsuthorized_keys"}̲') auth\dots$ (cat $authorize_file 2>/dev/null | awk ‘{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 3}̲' | tr '\n' ','…$ //’)
        if [ ! -z $authorized_host ];then             echo "$ user 授权 “ $KaTeX parse error: Can't use function '\"' in math mode at position 16: authorized_host\̲"̲ 无密码访问"        …$ (cat $authorize_file 2>/dev/null | awk ‘{print $KaTeX parse error: Expected 'EOF', got '}' at position 2: 3}̲'|wc -l) do\dots$ (cat /etc/ssh/sshd_config | grep PermitRootLogin)
    firstChar=${config:0:1}
    if [ $KaTeX parse error: Expected 'EOF', got '#' at position 15: firstChar == "#̲" ];then \dots$ (echo $config | awk ‘{print $2}’)
    fi
    echo "PermitRootLogin $KaTeX parse error: Expected group after '^' at position 136: \dotsfig | grep -v "^̲#" | sed '/^$ /d’

    #报表信息
    report_SSHAuthorized=“ $KaTeX parse error: Expected 'EOF', got '#' at position 16: authorized" #̲SSH信任主机 rep\dots$ Protocol_Version”    #SSH协议版本
    report_SSHDPermitRootLogin=” $KaTeX parse error: Expected 'EOF', got '#' at position 21: \dotstRootLogin" #̲允许root远程登录 } fu\dots$ (getState ntpd)"
        echo “”
        echo “/etc/ntp.conf”
        echo “-------------”
        cat /etc/ntp.conf 2>/dev/null | grep -v “^#” | sed '/^ $KaTeX parse error: Expected 'EOF', got '#' at position 16: /d' fi #̲报表信息 report\dots$ (getState ntpd)"
}

function uploadHostDailyCheckReport(){
    json="{
        “DateTime”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 16: report_DateTime\̲"̲,         \"Hos…$ report_Hostname”,
        “OSRelease”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 17: …eport_OSRelease\̲"̲,         \"Ker…$ report_Kernel”,
        “Language”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 16: report_Language\̲"̲,         \"Las…$ report_LastReboot”,
        “Uptime”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 14: report_Uptime\̲"̲,         \"CPU…$ report_CPUs”,
        “CPUType”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 15: report_CPUType\̲"̲,         \"Arc…$ report_Arch”,
        “MemTotal”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 16: report_MemTotal\̲"̲,         \"Mem…$ report_MemFree”,
        “MemUsedPercent”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 22: …_MemUsedPercent\̲"̲,         \"Dis…$ report_DiskTotal”,
        “DiskFree”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 16: report_DiskFree\̲"̲,         \"Dis…$ report_DiskUsedPercent”,
        “InodeTotal”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 18: …port_InodeTotal\̲"̲,         \"Ino…$ report_InodeFree”,
        “InodeUsedPercent”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 24: …nodeUsedPercent\̲"̲,         \"IP\…$ report_IP”,
        “MAC”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 11: report_MAC\̲"̲,         \"Gat…$ report_Gateway”,
        “DNS”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 11: report_DNS\̲"̲,         \"Lis…$ report_Listen”,
        “Selinux”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 15: report_Selinux\̲"̲,         \"Fir…$ report_Firewall”,
        “USERs”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 13: report_USERs\̲"̲,         \"USE…$ report_USEREmptyPassword”,
        “USERTheSameUID”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 22: …_USERTheSameUID\̲"̲,         \"Pas…$ report_PasswordExpiry”,
        “RootUser”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 16: report_RootUser\̲"̲,         \"Sud…$ report_Sudoers”,
        “SSHAuthorized”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 21: …t_SSHAuthorized\̲"̲,         \"SSH…$ report_SSHDProtocolVersion”,
        “SSHDPermitRootLogin”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 27: …PermitRootLogin\̲"̲,         \"Def…$ report_DefunctProsess”,
        “SelfInitiatedService”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 28: …nitiatedService\̲"̲,         \"Sel…$ report_SelfInitiatedProgram”,
        “RuningService”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 21: …t_RuningService\̲"̲,         \"Cro…$ report_Crontab”,
        “Syslog”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 14: report_Syslog\̲"̲,         \"SNM…$ report_SNMP”,
        “NTP”:“ $KaTeX parse error: Can't use function '\"' in math mode at position 11: report_NTP\̲"̲,         \"JDK…$ report_JDK”
    }"
    #echo “ $j s o n " c u r l - l - H " C o n t e n t - t y p e : a p p l i c a t i o n / j s o n " - X P O S T - d "$ json” “$uploadHostDailyCheckReportApi” 2>/dev/null
}

function check(){
    version
    getSystemStatus
    getCpuStatus
    getMemStatus
    getDiskStatus
    getNetworkStatus
    getListenStatus
    getProcessStatus
    getServiceStatus
    getAutoStartStatus
    getLoginStatus
    getCronStatus
    getUserStatus
    getPasswordStatus
    getSudoersStatus
    getJDKStatus
    getFirewallStatus
    getSSHStatus
    getSyslogStatus
    getSNMPStatus
    getNTPStatus
    getInstalledStatus
}

#执行检查并保存检查结果
check > $R E S U L T F I L E e c h o " 检查结果：$ RESULTFILE"