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

by on April 10, 2008 · 18 comments

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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{ 17 comments… read them below or add one }

1 n2j3 April 22, 2008

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

should really read

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

2 Dipak May 7, 2008

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?

3 Moussa NDIAYE May 26, 2008

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 …

4 idiot hunter June 10, 2008

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 ;)

5 Panya July 10, 2008

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

is no longer valid…..

6 Palani October 3, 2008

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

7 krish April 13, 2009

where are those gif files?

8 Vivek Gite April 15, 2009

Grab them here:

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

9 amran June 23, 2009

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:

10 Yoyo July 6, 2009

Dipak,

You cannot simply rename a Bash script to *.html.

from the comments within the script itself:
# Execute script as follows (and copy .gif file in this dir) :
# this.script.name > /var/www/html/info.html

Yoyo

11 Scrummie02 December 1, 2009

I’m getting this when running the script:
awk: BEGIN{print ”
awk: ^ unterminated string

has anyone seen this before?

12 Ankur December 15, 2009

u can make them in one line.. its just bcoz of the spacing problem in the script..

13 Mark April 4, 2010

Thanks for this code.

I am new to bash script and am making an application to gather system info. Your example of how too get CPU and RAM info is great.

14 Samet Atdag September 15, 2011

Thanks, great tool.
We’ve got several servers at job, and they have different username/passwords. So I’ve modified the script to get servers with different usernames/passwords.

I put the script to Github, here you can use if you want that version:
https://github.com/samet/Monitor.sh

15 tyrobert October 12, 2011

hey did u ever figure out the issue here? I am running into the same problem

16 Lara February 10, 2012

No lo eiedtnno, me lo podrias explicar mjor paso a poso lo que tengo que hacer para conseguirlo?. Gracias

17 soulaf May 7, 2012

cane i have a help on my project please?
i’m a student in univercity in morocco and i have a project to do before the end of this week
create a shell script with the name infoprocess wich ,when i tappe name proc1 name proc2…to name procn shows me informations about them like that:
proc1
|
|
proc2
|
|
i’m waiting for your ansewer and thank you all

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Tagged as: authentication, bash shell script, correct variables, cpu usage, format bin, gnu gpl version, linux, linux server, linux servers, ram usage, ref url, server load, setup ssh

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