Monitor host ping scripts

Monitor whether the host can ping the script-general Linux technology-Linux programming and kernel information. The following is a detailed description. :) Shell is a beginner. a script that just compiled to monitor whether the host can be pinged. If a host cannot be pinged, send an email and record it. If the host can be pinged again, send an email again, notifications, and audible alarms can be set.

#! /Bin/sh
# Set-x
######################################## ###############
PingConf = '/opt/monitor/iptest'
PingCantrech = '/opt/monitor/IpcannotReach'
# File where the log will be stored
LogDir = '/opt/monitor/Log'
# Define the interval time
INTERVAL = '10'
# Define the alarm process
User1 = 'xiaoli'
User2 = 'xiaozhang'
YouNeed = '/opt/monitor/youneed'
######################################## ################
Proc_alarm ()
{
While read IpAddress
Do
# Ingore any hash signs
Case $ IpAddress in
\#*)
;;
*)
Ping $ IpAddress-c 5> errtmp
If [$? = 0]; then
Rm errtmp
Else
Rm errtmp
ErrTime = 'date + % Y/% m/% d/% H: % M: % s'
Echo "$ ErrTime" ":" "$ IpAddress" "cann't be connected" >>$ LogDir
Echo "$ IpAddress"> tmp11
Sleep 1
Mail-s "$ IpAddress" _ Can_not_reach xiaoli@abced.comEcho "from $ User1" ":" "from $ User2"> $ YouNeed
Echo "$ ErrTime" ":" "$ IpAddress" "off" >>$ YouNeed
Audioplay-v 50-p speaker/opt/monitor/space. au
Fi
;;
Esac
Done <$ PingConf
}

######################################## ##################
Proc_unalarm ()
{
While read IpAddress
Do
# Ingore any hash signs
Case $ IpAddress in
\#*)
;;
*)
Ping $ IpAddress-c 5> errtmp
If [$? = 0]; then
Rm errtmp
ErrTime = 'date + % Y/% m/% d/% H: % M: % s'
Echo "$ ErrTime" ":" "$ IpAddress" "can be connected" >>$ LogDir
Sleep 1
Mail-s "$ IpAddress" _ OK _le xiaoli@abced.comEcho "from $ User1" ":" "from $ User2"> $ YouNeed
Echo "$ ErrTime" ":" "$ IpAddress" "on" >>> YouNeed
Echo $ IpAddress> tmp12
# Audioplay-v 50-p speaker/opt/monitor/space1.au
Else
Rm errtmp
Fi
;;
Esac
Done <$ PingCantrech
}
######################################## ##################
# Execute the proc_main function every the specified time INTERVAL
Uniq $ PingCantrech> tmp17
Cat tmp17> $ PingCantrech
Rm tmp17
If [-e $ PingCantrech]
Then
Proc_unalarm
Else
Echo "$ PingCantrech" is null
Fi
While ["1"-eq "1"]
Do
# Execute the proc_main function
##########################
Proc_alarm
##########################
If [-e tmp11]
Then
Echo "$ MYFILE" is nomal
If [-e "$ PingCantrech"]
Then
Echo "$ PingCantrech" is nomal
Cat tmp11> $ PingCantrech
Uniq $ PingCantrech> tmp18
Cat tmp18> $ PingCantrech
Rm tmp18
Proc_unalarm
Cat tmp11> $ PingCantrech
Else
Cat tmp11> $ PingCantrech
Proc_unalarm
Fi
Rm tmp11
MYFILE = 'tmp12'
If [-e "$ MYFILE"]
Then
Comm-23 $ PingCantrech tmp12> tmp13
Rm tmp12
Cat tmp13> $ PingCantrech
Rm tmp13
Else
Echo "$ MYFILE" is null
Cat tmp11> $ PingCantrech
Fi
Elif
Echo "$ MYFILE" is null
Then
Echo "$ MYFILE" is null
If [-e "$ PingCantrech"]
Then
Proc_unalarm
Else
Echo "$ MYFILE" is null
Fi
Fi
######################################
# Suspend execution for INTERVAL seconds
Sleep $ INTERVAL
Done