Linux 系统资源一键监控脚本
最近公司在统计虚拟机的资源占用情况，魔改了一个脚本用于快速统计。
V2 版本，加入邮件发送功能，同样使用 mailsend-go 实现。
#! /bin/bash
# unset any variable which system may be using
# Author: Tecmint.com
# Edited: CHN-STUDENT
# clear the screen
clear
smtpserver='smtp.163.com'
smtpport=25
user='user@163.com'
token='password'
sendto='user@163.com'
dates=$(date +"%Y-%m-%d %H-%M-%S")
title="${dates} 172.16.172.2 Server Info"
unset tecreset os architecture kernelrelease internalip externalip nameserver loadaverage
rm /tmp/info.txt
while getopts iv name
do
case $name in
i)iopt=1;;
v)vopt=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 [[ $# -eq 0 ]]
then
{
# Define Variable tecreset
# tecreset=$(tput sgr0)
tecreset='\033[0m'
# Check if connected to Internet or not
ping -c 1 baidu.com &> /dev/null && echo -e '\E[32m'"Internet: $tecreset Connected" | tee -a /tmp/info.txt || echo -e '\E[32m'"Internet: $tecreset Disconnected" | tee -a /tmp/info.txt
# Check OS Type
os=$(uname -o)
echo -e '\E[32m'"Operating System Type :" $tecreset $os | tee -a /tmp/info.txt
# Check OS Release Version and Name
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" | cut -f2 -d\" | tee -a /tmp/info.txt
echo -n -e '\E[32m'"OS Version :" $tecreset && cat /tmp/osrelease | grep -v "NAME" | cut -f2 -d\" | tee -a /tmp/info.txt
# Check Architecture
architecture=$(uname -m)
echo -e '\E[32m'"Architecture :" $tecreset $architecture | tee -a /tmp/info.txt
# Check Kernel Release
kernelrelease=$(uname -r)
echo -e '\E[32m'"Kernel Release :" $tecreset $kernelrelease | tee -a /tmp/info.txt
# Check hostname
echo -e '\E[32m'"Hostname :" $tecreset $HOSTNAME | tee -a /tmp/info.txt
# Check Internal IP
internalip=$(hostname -I)
echo -e '\E[32m'"Internal IP :" $tecreset $internalip | tee -a /tmp/info.txt
# Check External IP
#externalip=$(curl -s ipecho.net/plain;echo)
#echo -e '\E[32m'"External IP : $tecreset "$externalip | tee -a /tmp/info.txt
# Check DNS
nameservers=$(cat /etc/resolv.conf | sed '1 d' | awk '{print $2}')
echo -e '\E[32m'"Name Servers :" $tecreset $nameservers | tee -a /tmp/info.txt
# Check Logged In Users
who>/tmp/who
echo -e '\E[32m'"Logged In users :" $tecreset && cat /tmp/who | tee -a /tmp/info.txt
# Check RAM and SWAP Usages
#free -h | grep -v + > /tmp/ramcache
echo -e '\E[32m'"Ram Usages :" $tecreset | tee -a /tmp/info.txt
#cat /tmp/ramcache | grep -v "Swap"
#echo -e '\E[32m'"Swap Usages :" $tecreset
#cat /tmp/ramcache | grep -v "Mem"
free -m -w | grep "Mem:" | awk ' BEGIN{ print "totalMem","usedMem","availableMem","Use%" } END{ printf ("%-10s %-10s %-10s %-10s \n",$2,$3,$4,($2-$8)/$2) }' | tee -a /tmp/info.txt
# Check Disk Usages
echo -e '\E[32m'"Disk Usages :" $tecreset | tee -a /tmp/info.txt
df -m -x devtmpfs -x tmpfs -x debugfs -l | awk ' BEGIN{ print "totalSpace","usedSpace","availableSpace","Use%" } { totalSpace+=$2 ; usedSpace+=$3 ; availableSpace+=$4 } END { printf ("%-10s %-10s %-10s %-10s \n",totalSpace,usedSpace,availableSpace,usedSpace/totalSpace) }' | tee -a /tmp/info.txt
PREV_TOTAL=0
PREV_IDLE=0
# Get the total CPU statistics, discarding the 'cpu ' prefix.
CPU=(`sed -n 's/^cpu\s//p' /proc/stat`)
IDLE=${CPU[3]} # Just the idle CPU time.
# Calculate the total CPU time.
TOTAL=0
for VALUE in "${CPU[@]}"; do
let "TOTAL=$TOTAL+$VALUE"
done
# Calculate the CPU usage since we last checked.
let "DIFF_IDLE=$IDLE-$PREV_IDLE"
let "DIFF_TOTAL=$TOTAL-$PREV_TOTAL"
let "DIFF_USAGE=(1000*($DIFF_TOTAL-$DIFF_IDLE)/$DIFF_TOTAL+5)/10"
echo -e '\E[32m'"CPU: " $tecreset $DIFF_USAGE "%" | tee -a /tmp/info.txt
# Remember the total and idle CPU times for the next check.
PREV_TOTAL="$TOTAL"
PREV_IDLE="$IDLE"
# Wait before checking again.
# Check Load Average
#loadaverage=$(uptime | cut -d ':' -f 5-)
#echo -e '\E[32m'"Load Average :" $tecreset $loadaverage
# Check System Uptime
tecuptime=$(uptime | awk '{print $3,$4}' | cut -f1 -d,)
echo -e '\E[32m'"System Uptime Days/(HH:MM) :" $tecreset $tecuptime | tee -a /tmp/info.txt
# Unset Variables
unset tecreset os architecture kernelrelease internalip externalip nameserver loadaverage DIFF_IDLE DIFF_TOTAL DIFF_USAGE
# Remove Temporary Files
rm /tmp/osrelease /tmp/who
# Remove all echo colors
cat /tmp/info.txt | sed 's/\x1B[@A-Z\\\]^_]\|\x1B\[[0-9:;<=>?]*[-!"#$%&'"'"'()*+,.\/]*[][\\@A-Z^_`a-z{|}~]//g' > /tmp/send.txt
basepath=$(cd `dirname $0`; pwd)
mailsendgo_path="${basepath}/mailsend-go"
if [ -f "${mailsendgo_path}" ];then
# Give its permission
if ! [ -x ${mailsendgo_path} ];then
chmod a+x ${mailsendgo_path}
fi
echo "Send mail to your mail."
${mailsendgo_path} -sub "${title}" -smtp ${smtpserver} -port ${smtpport} auth -user ${user} -pass ${token} -to ${sendto} -from ${user} -cs "utf8" body -file "/tmp/send.txt"
else
echo -e "\033[31m ERROR!Can not find mailsend-go to send mail." ${tecreset}
fi
rm /tmp/send.txt
rm /tmp/info.txt
}
fi
shift $(($OPTIND -1))V1 版本，没有邮件发送功能。
#! /bin/bash
# unset any variable which system may be using
# Author: Tecmint.com
# Edited: CHN-STUDENT
# clear the screen
clear
unset tecreset os architecture kernelrelease internalip externalip nameserver loadaverage
while getopts iv name
do
case $name in
i)iopt=1;;
v)vopt=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 [[ $# -eq 0 ]]
then
{
# Define Variable tecreset
tecreset=$(tput sgr0)
# Check if connected to Internet or not
ping -c 1 baidu.com &> /dev/null && echo -e '\E[32m'"Internet: $tecreset Connected" || echo -e '\E[32m'"Internet: $tecreset Disconnected"
# Check OS Type
os=$(uname -o)
echo -e '\E[32m'"Operating System Type :" $tecreset $os
# Check OS Release Version and Name
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" | cut -f2 -d\"
echo -n -e '\E[32m'"OS Version :" $tecreset && cat /tmp/osrelease | grep -v "NAME" | cut -f2 -d\"
# Check Architecture
architecture=$(uname -m)
echo -e '\E[32m'"Architecture :" $tecreset $architecture
# Check Kernel Release
kernelrelease=$(uname -r)
echo -e '\E[32m'"Kernel Release :" $tecreset $kernelrelease
# Check hostname
echo -e '\E[32m'"Hostname :" $tecreset $HOSTNAME
# Check Internal IP
internalip=$(hostname -I)
echo -e '\E[32m'"Internal IP :" $tecreset $internalip
# Check External IP
#externalip=$(curl -s ipecho.net/plain;echo)
#echo -e '\E[32m'"External IP : $tecreset "$externalip
# Check DNS
nameservers=$(cat /etc/resolv.conf | sed '1 d' | awk '{print $2}')
echo -e '\E[32m'"Name Servers :" $tecreset $nameservers
# Check Logged In Users
who>/tmp/who
echo -e '\E[32m'"Logged In users :" $tecreset && cat /tmp/who
# Check RAM and SWAP Usages
#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"
free -m -w | grep "Mem:" | awk ' BEGIN{ print "totalMem","usedMem","availableMem","Use%" } END{ printf ("%-10s %-10s %-10s %-10s \n",$2,$3,$4,($2-$8)/$2)}'
# Check Disk Usages
echo -e '\E[32m'"Disk Usages :" $tecreset
df -m -x devtmpfs -x tmpfs -x debugfs -l | awk ' BEGIN{ print "totalSpace","usedSpace","availableSpace","Use%" } { totalSpace+=$2 ; usedSpace+=$3 ; availableSpace+=$4 } END { printf ("%-10s %-10s %-10s %-10s \n",totalSpace,usedSpace,availableSpace,usedSpace/totalSpace) }'
PREV_TOTAL=0
PREV_IDLE=0
# Get the total CPU statistics, discarding the 'cpu ' prefix.
CPU=(`sed -n 's/^cpu\s//p' /proc/stat`)
IDLE=${CPU[3]} # Just the idle CPU time.
# Calculate the total CPU time.
TOTAL=0
for VALUE in "${CPU[@]}"; do
let "TOTAL=$TOTAL+$VALUE"
done
# Calculate the CPU usage since we last checked.
let "DIFF_IDLE=$IDLE-$PREV_IDLE"
let "DIFF_TOTAL=$TOTAL-$PREV_TOTAL"
let "DIFF_USAGE=(1000*($DIFF_TOTAL-$DIFF_IDLE)/$DIFF_TOTAL+5)/10"
echo -e '\E[32m'"CPU: " $tecreset $DIFF_USAGE "%"
# Remember the total and idle CPU times for the next check.
PREV_TOTAL="$TOTAL"
PREV_IDLE="$IDLE"
# Wait before checking again.
# Check Load Average
#loadaverage=$(uptime | cut -d ':' -f 5-)
#echo -e '\E[32m'"Load Average :" $tecreset $loadaverage
# Check System Uptime
tecuptime=$(uptime | awk '{print $3,$4}' | cut -f1 -d,)
echo -e '\E[32m'"System Uptime Days/(HH:MM) :" $tecreset $tecuptime
# Unset Variables
unset tecreset os architecture kernelrelease internalip externalip nameserver loadaverage DIFF_IDLE DIFF_TOTAL DIFF_USAGE
# Remove Temporary Files
rm /tmp/osrelease /tmp/who
}
fi
shift $(($OPTIND -1))有时间在优化一下，做成统计完信息自动发送邮件的。
请看上面的 V2 版本。
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