linux系统基础监控脚本

发表于2020-09-15更新于2020-09-24
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#! /bin/bash

while getopts ivh name
do
        case $name in
          i)iopt=1;;
          v)vopt=1;;
          h)hopt=1;;
         *)echo "Invalid arg";;
        esac
done

if [[ ! -z $iopt ]]
then
{
wd=$(pwd)
basename "$(test -L "$0" && readlink "$0" || echo "$0")" > /tmp/scriptname
scriptname=$(echo -e -n $wd/ && cat /tmp/scriptname)
su -c "cp $scriptname /usr/bin/monitor" root && echo "Congratulations! Script Installed, now run monitor Command" || echo "Installation failed"
}
fi

if [[ ! -z $vopt ]]
then
{
echo -e "tecmint_monitor version 0.1\nDesigned by Tecmint.com\nReleased Under Apache 2.0 License"
}
fi
if [[ ! -z $hopt ]]
then
{
echo -e " -i                                Install script"
echo -e " -v                                Print version information and exit"
echo -e " -h                                Print help (this information) and exit"
}
fi

if [[ $# -eq 0 ]]
then
{
clear

unset tecreset os architecture kernelrelease internalip externalip nameserver loadaverage

tecreset=$(tput sgr0)

ping -c 1 www.baidu.com &> /dev/null && echo -e '\E[32m'"Internet: $tecreset Connected" || echo -e '\E[32m'"Internet: $tecreset Disconnected"

os=$(uname -o)
echo -e '\E[32m'"Operating System Type :" $tecreset $os

###################################
OS=uname -s
REV=uname -r
MACH=uname -m

GetVersionFromFile()
{
    VERSION=cat $1 | tr "\n" ' ' | sed s/.*VERSION.*=\ //
}

if [ "${OS}" = "SunOS" ] ; then
    OS=Solaris
    ARCH=uname -p
    OSSTR="${OS} ${REV}(${ARCH} uname -v)"
elif [ "${OS}" = "AIX" ] ; then
    OSSTR="${OS} oslevel (oslevel -r)"
elif [ "${OS}" = "Linux" ] ; then
    KERNEL=uname -r
    if [ -f /etc/redhat-release ] ; then
        DIST='RedHat'
        PSUEDONAME=cat /etc/redhat-release | sed s/.*\(// | sed s/\)//
        REV=cat /etc/redhat-release | sed s/.*release\ // | sed s/\ .*//
    elif [ -f /etc/SuSE-release ] ; then
        DIST=cat /etc/SuSE-release | tr "\n" ' '| sed s/VERSION.*//
        REV=cat /etc/SuSE-release | tr "\n" ' ' | sed s/.*=\ //
    elif [ -f /etc/mandrake-release ] ; then
        DIST='Mandrake'
        PSUEDONAME=cat /etc/mandrake-release | sed s/.*\(// | sed s/\)//
        REV=cat /etc/mandrake-release | sed s/.*release\ // | sed s/\ .*//
    elif [ -f /etc/debian_version ] ; then
        DIST="Debian cat /etc/debian_version"
        REV=""

	fi

	if ${OSSTR} [ -f /etc/UnitedLinux-release ] ; then
    DIST="${DIST}[cat /etc/UnitedLinux-release | tr "\n" ' ' | sed s/VERSION.*//]"
	fi

	OSSTR="${OS} ${DIST} ${REV}(${PSUEDONAME} ${KERNEL} ${MACH})"

fi

##################################
#cat /etc/os-release | grep 'NAME\|VERSION' | grep -v 'VERSION_ID' | grep -v 'PRETTY_NAME' > /tmp/osrelease
#echo -n -e '\E[32m'"OS Name :" $tecreset  && cat /tmp/osrelease | grep -v "VERSION" | grep -v CPE_NAME | cut -f2 -d\"
#echo -n -e '\E[32m'"OS Version :" $tecreset && cat /tmp/osrelease | grep -v "NAME" | grep -v CT_VERSION | cut -f2 -d\"
echo -e '\E[32m'"OS Version :" $tecreset $OSSTR 

architecture=$(uname -m)
echo -e '\E[32m'"Architecture :" $tecreset $architecture


kernelrelease=$(uname -r)
echo -e '\E[32m'"Kernel Release :" $tecreset $kernelrelease


echo -e '\E[32m'"Hostname :" $tecreset $HOSTNAME


internalip=$(hostname -I)
echo -e '\E[32m'"Internal IP :" $tecreset $internalip


externalip=$(curl -s ipecho.net/plain;echo)
echo -e '\E[32m'"External IP : $tecreset "$externalip


nameservers=$(cat /etc/resolv.conf | sed '1 d' | awk '{print $2}')
echo -e '\E[32m'"Name Servers :" $tecreset $nameservers 


who>/tmp/who
echo -e '\E[32m'"Logged In users :" $tecreset && cat /tmp/who 

free -h | grep -v + > /tmp/ramcache
echo -e '\E[32m'"Ram Usages :" $tecreset
cat /tmp/ramcache | grep -v "Swap"
echo -e '\E[32m'"Swap Usages :" $tecreset
cat /tmp/ramcache | grep -v "Mem"


df -h| grep 'Filesystem\|/dev/sda*' > /tmp/diskusage
echo -e '\E[32m'"Disk Usages :" $tecreset 
cat /tmp/diskusage


loadaverage=$(top -n 1 -b | grep "load average:" | awk '{print $10 $11 $12}')
echo -e '\E[32m'"Load Average :" $tecreset $loadaverage


tecuptime=$(uptime | awk '{print $3,$4}' | cut -f1 -d,)
echo -e '\E[32m'"System Uptime Days/(HH:MM) :" $tecreset $tecuptime


unset tecreset os architecture kernelrelease internalip externalip nameserver loadaverage

rm /tmp/who /tmp/ramcache /tmp/diskusage
}
fi
shift $(($OPTIND -1))

将次脚本命名为monitor，放到服务器的/usr/bin/下，授予执行+x权限

chmod o+x /usr/bin/monitor

然后直接执行monitor命令即可查看系统相关信息

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[root@localhost ~]# monitor 
Operating System Type : GNU/Linux
OS Version : Linux RedHat 7.2(Maipo 3.10.0-327.el7.x86_64 x86_64)
Architecture : x86_64
Kernel Release : 3.10.0-327.el7.x86_64
Hostname : localhost
Internal IP : 1.1.1.1
Name Servers : *.*.com. 1.1.1.1 1.1.1.1
Logged In users :
aq       pts/0        2020-09-24 15:31 (172.30.1.199)
Ram Usages :
              total        used        free      shared  buff/cache   available
Mem:           7.6G        638M        161M        397M        6.9G        6.4G
Swap Usages :
              total        used        free      shared  buff/cache   available
Swap:          8.0G        3.4M        8.0G
Disk Usages :
Filesystem                   Size  Used Avail Use% Mounted on
/dev/vda1                     99G   63G   31G  67% /
devtmpfs                     3.9G     0  3.9G   0% /dev
tmpfs                        3.9G   52K  3.9G   1% /dev/shm
/dev/mapper/vg_data-lv_data  197G  3.2G  184G   2% /opt
Port Usages :
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      6509/haproxy       
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      933/sshd: /usr/sbin  
tcp6       0      0 :::22                   :::*                    LISTEN      933/sshd: /usr/sbin 
Load Average : loadaverage:0.12,
System Uptime Days/(HH:MM) : 71 days