Shell script to get uptime, disk , cpu , RAM , system load, from multiple Linux servers – output the information on a single server in html format

Shell script to get uptime, disk usage, cpu usage, RAM usage, system load, etc; from multiple Linux servers and output the information on a single server in html format



#!/bin/bash


# Shell script to get uptime, disk usage, cpu usage, RAM usage,system load,etc. 


# from multiple Linux servers and output the information on a single server 


# in html format. Read below for usage/installation info


# *---------------------------------------------------------------------------*


# * dig_remote_linux_server_information.bash,v0.1, last updated on 25-Jul-2005*


# * Copyright (c) 2005 nixCraft project                                       *


# * Comment/bugs: http://cyberciti.biz/fb/                                    *


# * Ref url: http://cyberciti.biz/nixcraft/forum/viewtopic.php?t=97           *


# * This script is licensed under GNU GPL version 2.0 or above                *


# *---------------------------------------------------------------------------*


# *  Installation Info                                                        *


# ----------------------------------------------------------------------------*


# You need to setup ssh-keys to avoid password prompt, see url how-to setup 


# ssh-keys:


# cyberciti.biz/nixcraft/vivek/blogger/2004/05/ssh-public-key-based-authentication.html


# 


# [1] You need to setup correct VARIABLES script:


#


# (a) Change Q_HOST to query your host to get information


# Q_HOST="192.168.1.2 127.0.0.1 192.168.1.2"


#


# (b) Setup USR, who is used to connect via ssh and already setup to connect 


# via ssh-keys


# USR="nixcraft"


#


# (c)Show warning if server load average is below the limit for last 5 minute.


# setup LOAD_WARN as per your need, default is 5.0


#


# LOAD_WARN=5.0


#


# (d) Setup your network title using MYNETINFO


# MYNETINFO="My Network Info"


#


# (e) Save the file 


#


# Please refer to forum topic on this script: 


# Also download the .gif files and put them in your output dir


#


# ----------------------------------------------------------------------------


# Execute script as follows (and copy .gif file in this dir) :


# this.script.name > /var/www/html/info.html


# ============================================================================


# This script is part of nixCraft shell script collection (NSSC)


# Visit http://bash.cyberciti.biz/ for more information.


# -------------------------------------------------------------------------


 


# SSH SERVER HOST IPS, setup me 


# Change this to query your host


Q_HOST="192.168.1.2 127.0.0.1 192.168.1.2"


 


# SSH USER, change me


USR="nixcraft"


 


# Show warning if server load average is below the limit for last 5 minute


LOAD_WARN=5.0


 


# Your network info


MYNETINFO="My Network Info"


#


# if it  is run as cgi we can do reload stuff too :D


PBY='Powered by <a href="http://cyberciti.biz/download/">script</a>'


 


 


# font colours


GREEN='<font color="#00ff00">'


RED='<font color="#ff0000">'


NOC='</font>'


LSTART='<ul><li>'


LEND='</li></ul>'


# Local path to ssh and other bins


SSH="/usr/bin/ssh"


PING="/bin/ping"


NOW="$(date)"


 


## functions ##


writeHead(){


 echo '<HTML><HEAD><TITLE>Network Status</TITLE></HEAD>


 <BODY alink="#0066ff" bgcolor="#000000" link="#0000ff" text="#ccddee" vlink="#0033ff">'


 echo '<CENTER><H1>'


 echo "$MYNETINFO</H1>"


 echo "Generated on $NOW"


 echo '</CENTER>'


 


}


 


writeFoot(){


 echo "<HR><center>$PBY</center>"


  echo "</BODY></HTML>"


}


 


## main ##


 


writeHead


echo '<TABLE WIDTH=100% BORDER=2 BORDERCOLOR="#000080" CELLPADDING=4 CELLSPACING=4 FRAME=HSIDES RULES=NONE" >'


echo '<TR VALIGN=TOP>'


for host in $Q_HOST


do


  #echo '<TD WIDTH=33% BGCOLOR="#0099ff">'


  echo '<TD BGCOLOR="#0099ff">'


  _CMD="$SSH $USR@$host"


  rhostname="$($_CMD hostname)"


 


  ruptime="$($_CMD uptime)"


  if $(echo $ruptime | grep -E "min|days" >/dev/null); then


    x=$(echo $ruptime | awk '{ print $3 $4}')


  else


    x=$(echo $ruptime | sed s/,//g| awk '{ print $3 " (hh:mm)"}')


  fi


  ruptime="$x"


 


  rload="$($_CMD uptime |awk -F'average:' '{ print $2}')"


  x="$(echo $rload | sed s/,//g | awk '{ print $2}')"


  y="$(echo "$x >= $LOAD_WARN" | bc)"


  [ "$y" == "1" ] && rload="$RED $rload (High) $NOC" || rload="$GREEN $rload (Ok) $NOC"


 


  rclock="$($_CMD date +"%r")"


  rtotalprocess="$($_CMD ps axue | grep -vE "^USER|grep|ps" | wc -l)"


  rfs="$($_CMD df -hT | grep -vE "^Filesystem|shm" \


  | awk 'BEGIN{print "<ul>"}{w=sprintf("%d",$6);print "<li>" $7 \


  "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;" $6 \


  "(" $2 ")<BR> <img src=\"indicator.gif\" height=\"4\" width=\"" w "\"> \


  <BR><img src=\"graph.gif\"> \


  <BR>" $4"/"$3 "</li>"}END{ print "</ul>"}')"


 


  rusedram="$($_CMD free -mto | grep Mem: | awk '{ print $3 " MB" }')"


  rfreeram="$($_CMD free -mto | grep Mem: | awk '{ print $4 " MB" }')"


  rtotalram="$($_CMD free -mto | grep Mem: | awk '{ print $2 " MB" }')"


 


  $PING -c1  $host>/dev/null


  if [ "$?" != "0" ] ; then


    rping="$RED Failed $NOC"   


  else


    rping="$GREEN Ok $NOC"


    echo "<b><u>$rhostname</u></b><BR>" 


    echo "Ping status: $rping<BR>"


    echo "Time: $rclock<BR>"


    echo "Uptime: $ruptime <BR>"


    echo "Load avarage: $LSTART $rload $LEND"


    echo "Total running process: $LSTART $rtotalprocess $LEND"


    echo "Disk status:"


    echo "$rfs"


    echo "Ram/swap status:<ul>" 


    echo "<li>Used RAM: $rusedram</li>" 


    echo "<li>Free RAM: $rfreeram</li>"


    echo "<li>Total RAM: $rtotalram </li></ul>"


  fi   


 


  echo "</td>"


done  


  echo "</tr></table>"


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Wednesday, November 19, 2014

Shell script to get uptime, disk , cpu , RAM , system load, from multiple Linux servers – output the information on a single server in html format

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