help needed with shell script to append to the end of a specific line in a file on multiple servers Post: 302529598

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Top Forums Shell Programming and Scripting help needed with shell script to append to the end of a specific line in a file on multiple servers Post 302529598 by momin on Thursday 9th of June 2011 06:05:10 PM

06-09-2011

Registered User

help needed with shell script to append to the end of a specific line in a file on multiple servers

Hi Folks,

I was given a task to append three IP's at the end of a specific (and unique) line within a file on multiple servers.

I was not able to do that with the help of a script. All I could was:

for i in server1 server2 server3 server4
do
ssh $i
done

I know 'sed' could be used to append to the end of the line but how to save that and replicate on all servers in the list?

Original File
-----------

#cat /etc/ftpd/ftpaccess
greeting brief
log commands
log transfers
class users real 172.25.6.148 172.25.197.148 172.25.52.100 172.21.56.75 172.21.54.159 172.25.2.25 172.25.2.26 172.25.119.132 172.25.119.133 172.25.119.134 172.25.119.135 172.25.183.132 172.25.183.133 172.25.183.134 172.25.183.135
banner /etc/ftpd/banner.txt

(each server had different IP's in the line starting with: class
users real .....):

Change required:
----------------

Append "172.21.105.99 172.21.105.100 172.21.105.101" at the end of line starting with text:'class users real')

Any help will be appreciating in how would you gurus would accomplish this task with the help of a script / scripted-command.

Thanks in advance

momin

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wanbootutil

wanbootutil(1M) 					  System Administration Commands					   wanbootutil(1M)

NAME

       wanbootutil - manage keys and certificates for WAN booting

SYNOPSIS

       wanbootutil [keygen] [option_specific_arguments]

       wanbootutil [keymgmt] [option_specific_arguments]

       wanbootutil [p12split] [option_specific_arguments]

DESCRIPTION

       The wanbootutil command creates and manages WANboot encyrption and hashing keys and manipulates PKCS #12 files for use by WAN boot.

       wanbootutil has three subcommands, each covered in a separate man page:

       wanboot_keygen(1M)      Generates encryption and hashing keys.

       wanboot_keymgmt(1M)     Inserts and extracts keys from WAN boot key repositories.

       wanboot_p12split(1M)    Splits a PKCS #12 file into separate certificate and key files for use by WAN boot.

OPTIONS

       The  options  are supported for wanbootutil are the use of keygen, keymgmt, or p12split. The options for these subcommands are described in
       their respective man pages.

EXAMPLES

       Example 1 Generate a 3DES Client Key

	 # wanbootutil keygen -c -o net=172.16.174.0,cid=010003BA0E6A36,type=3des

       Example 2 Insert an RSA Private Client Key

	 wanbootutil keymgmt -i -k keyfile 
	   -s /etc/netboot/172.16.174.0/010003BA0E6A36/keystore -o type=rsa

       Example 3 Split a PKCS #12 File into Certificate and Key Components

	 # wanbootutil p12split -i p12file -c out_cert -k out_key

EXIT STATUS

       0	   Successful operation.

       non-zero    An error occurred. Writes an appropriate error message to standard error.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWwbsup 		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       wanboot_keygen(1M), wanboot_keymgmt(1M), wanboot_p12split(1M), attributes(5)

SunOS 5.11							    18 Apr 2003 						   wanbootutil(1M)