Скрипт bash для получения статистики с нескольких серверов

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С помощью этого скрипта вы сможете получать информацию об аптайме, использовании диска и CPU вашего сервера, загрузке системы и тому подобную статистическую информацию с нескольких серверов Linux на отдельный сервер в формате HTML.

#!/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 script'

# font colours
GREEN=''
RED=''
NOC=''
LSTART='
'
'LEND='

# Local path to ssh and other bins
SSH="/usr/bin/ssh"
PING="/bin/ping"
NOW="$(date)"

## functions ##
writeHead(){
  echo 'Разработка сайтов Joomla .:|:. Скрипт bash для получения статистики с нескольких серверов'  
  echo ''
  echo "$MYNETINFO
"
  echo "Generated on $NOW"
  echo ''
}

writeFoot(){
  echo "
$PBY"
  echo ""
}

## main ##
writeHead
echo ''
echo ''

for host in $Q_HOST
do
  echo '"
done
echo "'
  _CMD="$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 "
  "}{w=sprintf("%d",$6);print "
  " $7 \
  "            " $6 \
  "(" $2 ")
  \
  
 \
  
" $4"/"$3 "

  "}END{ print "

  "}')"

  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 $NOC"
    echo "$rhostname
"
    echo "Ping status: $rping
"
    echo "Time: $rclock
"
    echo "Uptime: $ruptime 
"
    echo "Load avarage: $LSTART $rload $LEND"
    echo "Total running process: $LSTART $rtotalprocess $LEND"
    echo "Disk status:"
    echo "$rfs"
    echo "Ram/swap status: "
    echo "Used RAM: $rusedram
"
    echo "Free RAM: $rfreeram
"
    echo "Total RAM: $rtotalram 
"
    echo "
"
  fi

echo "
"
writeFoot