Visit The New, Modern Unix Linux Community


Help with script, shutdown if no ping responce


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Help with script, shutdown if no ping responce
# 1  
Help with script, shutdown if no ping responce

Hi, i would like to create a script that shuts down the system if the power fails, basicly the solaris box would load the script at startup.

Ping 192.168.1.100 every 20 secs
If cannot get responce 3 times in a row send init 0 to the system.

Simple but effective, as 192.168.100.1 wont be on the ups backup, so the solaris system will know the power is down and it will shutdown.

Im sure it wont be hard to do im just new to unix, could someone help me with this?
# 2  
anyone? Smilie
# 3  
Erm........

If I am reading this right.....you want to send a shutdown command to a machine, the power to which, has failed. If the power has failed the machine will be dead in the water and not be able to respond to *any* commands.

Have you described your requirement clearly and accurately as at present, unless I have badly misread it, it doesn't make a whole hep of sense
# 4  
I have a unix machine which is on a UPS with only about 15mins battery life, what i would like to happen is the unix machine shutdown safely if the power fails. The way i want to do it, would have the unix machine ping my cable modem every 20 secs, which is not on the UPS, so if the ping was to have no responce the modem would probably be off, which means the power would have failed.

I would like the unix machine to shutdown if it cant contact the cable modem 3 times in a row via ping.
# 5  
Code:
#!/bin/sh

while true
do
      sleep 300
      REBOOT=/usr/bin/true
      for d in a b c
      do
            if /usr/sbin/ping cable-ip
            then
                 REBOOT=/usr/bin/false
                 break
            fi
      done
      if $REBOOT
      then
             shutdown -g 1 -y -i 5
      fi
done

or better still, remove outer while loop and install as cron job.

Note, Solaris "ping" works quite differently to other platform pings.
# 6  
Thanks! would this work with solaris 10?
# 7  
Give it a go.... Smilie

Make sure you understand it all before you install it, as it has to run as root to run shutdown.

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #499
Difficulty: Medium
The term 'self-documenting' code means the compiler has advanced A.I. which documents what each line of code actually does.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

db shutdown script

I am going to create shutdown database script. We have dabase shutdown script. But i need take dabase which online and make it down. I got user id which needs to dabase to down ID=`ps -ef | grep -i pmon | grep -v grep | awk '{print $1}'` ( got orace side DB=`ps -ef | grep -i pmon |... (1 Reply)
Discussion started by: allwin
1 Replies

2. Shell Programming and Scripting

how to grep the responce on TL1

Hi All, I'm a newbie here.. how can i grep the data when i receive responce from TL1 example: responce from TL1: blabalbalbalbalba.,lbalba,SUCCESFULL,blahblahbalabh... how can i grep the "SUCCESSFULL" while i'm running the script? is it possible? because i'm only to know is if... (2 Replies)
Discussion started by: nikki1200
2 Replies

3. Shell Programming and Scripting

Shutdown Script

Im writing a script to read a file called shutdown.cf and shut down any scripts that are listed there. I have came up with the following based on things I saw in similar programs but it doesn not work: Has anybody any idea what I may be doing wrong? Cheers Paul (4 Replies)
Discussion started by: runnerpaul
4 Replies

4. UNIX for Dummies Questions & Answers

Script to force Oracle database shutdown when shutdown immediate does not work

I have Oracle 9i R2 on AIX 5.2. My Database is running in shared server mode (MTS). Sometimes when I shutdown the database it shutsdown cleanly in 4-5 mints and sometimes it takes good 15-20 minutes and then I get some ora-600 errors and only way to shutdown is by opening another session and... (7 Replies)
Discussion started by: aixhp
7 Replies

5. Shell Programming and Scripting

Script sh for shutdown

Hi, i need shutdown a pc, is in the same network what command i can use in the script :o ? (1 Reply)
Discussion started by: Dymblos
1 Replies

6. HP-UX

Shutdown script

Hi, I am on Alpha Server with HP Tru64 system. I wish to setup shutdown to automatically and cleanly shutdown informix during the shutting down of the system. Ie. I was trying to use rc0.d to do this but failed. Has anyone tried doing this before? I already have the script and linked it to... (0 Replies)
Discussion started by: kingsto88
0 Replies

7. UNIX for Dummies Questions & Answers

A script for shutdown

I want to make a script to shutdown a unixware computer from other user then root. In Sco version i use "as root" but in the unixware i don't know. Please help me. 10x (12 Replies)
Discussion started by: kelu
12 Replies

8. Shell Programming and Scripting

Script not waiting for user responce

hi all, Im fairly new to scripting and am having a noobish issue. Ive got a script that checks for certain directories and if they dont exist, prompts the user to do a mkdir. heres trouble spot in the script: cat dirlsttemp.dat | while read dir; do echo "$dir does not exist, would you... (3 Replies)
Discussion started by: rdudejr
3 Replies

9. UNIX for Advanced & Expert Users

Shutdown script

Hi Guys, I want to execute few of my bash script, so that whenever someone calls shutdown now -r command, I want my script to execute first before shutting down. Any help please????? I've just started playing with the unix system, so far its been brilliant.... (10 Replies)
Discussion started by: alpha_manic
10 Replies

10. Shell Programming and Scripting

remote shutdown script

Dear all I would like to shutdown multiple servers remotely with the issue of one single command. What is the command to shut down a server remotely (ie, I want to issue a command on server X to shutdown server Y and server Z). Thank you (2 Replies)
Discussion started by: soliberus
2 Replies

Featured Tech Videos