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Top Forums Shell Programming and Scripting Simple script to modify kickstart file Post 302193244 by primp on Thursday 8th of May 2008 09:16:05 PM
Old 05-08-2008
[root@atlantis ~]# cat generateKickstartConfig.sh

Code:
#!/bin/sh

#define outputfile
KS_CONFIG=ks.cfg

echo -e "Starting Kickstart Configuration Generator Script ...\n"

echo -en "\tWhat is the IP Address:"
read IP_ADDRESS

echo -en "\tWhat is the gateway Address:"
read GATEWAY_ADDRESS

echo -en "\tWhat is the DNS Server:" 
read DNS_SERVER

echo -en "\tWhat is the Hostname:"
read HOSTNAME

echo "network --device eth0 --bootproto static --ip ${IP_ADDRESS} --netmask 255.255.255.0 --gateway ${GATEWAY_ADDRESS} --nameserver ${DNS_SERVER} --hostname ${HOSTNAME}" >> ${KS_CONFIG}

Remember to make the script executable
Execute with ./generateKickstartConfig.sh
Answer the 4 questions and "ls" your directory, you'll see a ks.cfg file

This is a very basic solution, there's so many possiblities, you can verify the user input to check to see if the values are valid, like if they enter an IP for hostname or vice versa, check DNS to see if these IPs resolve before using them in the kickstart, use regular expression to verify the user input, if its invalid you can loop to verify they enter something useful, I mean you can write a pretty complicated script to generate your ks.cfg file.
 

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echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME
echo - echo arguments to standard output SYNOPSIS
/usr/ucb/echo [-n] [argument] DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output. echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi- ronment variables. For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows: o echo your current-working-directory's full pathname o pipe the output through tr to translate the path's embedded slash-characters into space-characters o pipe that output through wc -w for a count of the names in your path. example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w" See tr(1) and wc(1) for their functionality. The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's echo() also understands a as the audible bell character; however, these commands do not have an -n option. OPTIONS
-n Do not add the NEWLINE to the output. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5) NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases. SunOS 5.10 3 Aug 1994 echo(1B)
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