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Full Discussion: Script to compare all the config files in a cluster of servers.
Top Forums Shell Programming and Scripting Script to compare all the config files in a cluster of servers. Post 302287815 by rdlover on Sunday 15th of February 2009 06:13:03 PM
Old 02-15-2009
Script to compare all the config files in a cluster of servers.
Hello Lads!

Climbing the shell scripting learning curve, i am faced with yet another obstacle! Here's the challenge in front of me :

1) I have 15 servers in a cluster,all of them have the same config files by name : /home/apps/xrm/App_B.cfg

2) The developers change the entries in the config files as and when required, and this is done on all the servers in the cluster.They take a backup of the original backup config before modifying it. Something like this: App_B.cfg.021509

3) I am trying to come up with a script which can be run on any one of the servers in the cluster which can do a comparision between the new config file (modified) and the old backup and put the result in a log, it should do this on all the 15 servers without me having to run the script on all boxes :

Code:
Example : 

The server names are :bpon03,bpon04,bpon05...bpon15

I would like to run the script on bpon03, and ideally would like the result to be in a log :

diff_log.txt with results in it as :

bpon03 :

diff App_B.cfg App_B.cfg.021509

xxx..xxx..

bpon04:

diff App_B.cfg App_B.cfg.021509

xxx..xxx..


bpon05:

diff App_B.cfg App_B.cfg.021509

xxx...xxxxx

and so on.

I know this must sound pretty silly for the experts here, but i am unable to come up with a solution with my very elementary scripting skills. Help would be greatly appreciated, and oh, the SSH keys are shared on all the servers,so thats not a problem. Thanks.
 

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LEARN ABOUT DEBIAN

abootimg

ABOOTIMG(1)						      General Commands Manual						       ABOOTIMG(1)

NAME

       abootimg - manipulate Android Boot Images.

DESCRIPTION

       Tool to read/write/update android boot images

SYNOPSIS

       abootimg
	-i <bootimg>
       abootimg
	-x <bootimg> [<bootimg.cfg> [<kernel> [<ramdisk> [<secondstage>]]]]
       abootimg
	-u <bootimg> [-c "param=value"] [-f <bootimg.cfg>] [-k <kernel>] [-r <ramdisk>] [-s <secondstage>]
       abootimg
	--create <bootimg> [-c "param=value"] [-f <bootimg.cfg>] -k <kernel> -r <ramdisk> [-s <secondstage>]

OPTIONS

       -i     print boot imgage informations

       -x     Extract a boot image

       -u     Update a boot image

       --create
	      Create a boot image

   Options for extracting boot images
       bootimg
	      Existing bootimage to use

       bootimg.cfg
	      Name for the bootimg.cfg file, defaults to bootimg.cfg

       kernel Name for the kernel image, defaults to zImage

       ramdisk
	      Name for the ramdisk image, defaults to initrd.img

       secondstage
	      Name for the second-stage image, defaults to stage2.img

   Options for updating and creating boot images
       bootimg
	      Existing bootimage to use

       -c param=value
	      Existing bootimage to use

       -f <bootimg.cfg>
	      Update bootimg.cfg with the named file

       -k <kernel>
	      Update kernel with the named file

       -r <ramdisk>
	      Update ramdisk with the named file

       -s <secondstage>
	      Update secondstage image with the named file

																       ABOOTIMG(1)
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