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

in Monitoring

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>
 
"
writeFoot
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{ 1 trackback }

AirV’s Blog » Archive du blog » Monitoring
April 20, 2008 at 5:03 pm

{ 9 comments… read them below or add one }

n2j3 April 22, 2008 at 7:04 am

echo “Load avarage: $LSTART $rload $LEND”

should really read

echo “Load average: $LSTART $rload $LEND”

Reply

Dipak May 7, 2008 at 11:15 pm

I have installed this script in to /var/www/html/ directory and changed name to info.html.
I ran this script from command line
#./info.html
and I got an error line 110
and 126

What is next how do I run this script?

Reply

Moussa NDIAYE May 26, 2008 at 10:53 pm

Hello Dipak.

We cannot read what you put in lines 110 and 126.
Try to be more explicit.. (next time if you want gurus to help you try to give them the informatons they need to debug ).

this script is running under the linux box and display the results on a page, so try to visit http://the_server_where_the_script_is_running/info.html.

Try it it post your results …

Reply

idiot hunter June 10, 2008 at 7:35 am

Moussa NDIAYE: If you were such a “guru” you would probably guess that he just copied the script as is,
cat -n somefile gets you linenumbers…guru my ass ;)

Reply

Panya July 10, 2008 at 1:25 am

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

is no longer valid…..

Reply

Palani October 3, 2008 at 12:51 pm

hi,
i am very new to shell script program, i tried u r script but i don’t know how to proceed
and if run the script i am getting this error
kindly guide me how to run the script ,

script output !

My Network Info
<span style=color:
Generated on Fri Oct 3 16:41:02 GMT 2008

./109.sh: line 110: syntax error near unexpected token `newline’
./109.sh: line 110: ` echo ”

thanks & regards

Palani.K

Reply

krish April 13, 2009 at 2:13 pm

where are those gif files?

Reply

Vivek Gite April 15, 2009 at 1:10 am

Grab them here:

http://www.cyberciti.biz/tmp/graph.gif
http://www.cyberciti.biz/tmp/indicator.gif

Reply

amran June 23, 2009 at 9:16 am

hi,
i am new in scripting. i try run this script, but it always promt me password

[root@amranlinux src]# ./check-linux
Network Status

My Network Info
Generated on Tue Jun 23 17:16:07 MYT 2009

root@172.18.1.2’s password:

Reply

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