Shell Programming and Scripting

Hi all,

Can you help me make a script(ksh-Solaris 8) that will match two configuration files?

I have some problems with sed newline.

The script should at least match the value of parameters from one file to another, which looks always like this:

parameter1=some_value
parameter2=some_value2 etc..

My first try is the piece of code below but sed does not insert a new line using "\n" or the other method which was "\"+enter...

Thanks

Code:

for var1 in `diff /etc/opt/config/db.cfg /etc/opt/config2/db.cfg | grep ^\> | awk -F" " '{ print $2 }'`
do
value=`echo $var1 | awk -F"=" '{ print $2 }'`
param=`echo $var1 | awk -F"=" '{ print $1 }'`

# This is done with the intention of replacing "param=OLD_VALUE with param=NEW_VALUE"
cat /etc/opt/config2/db.cfg | sed s/$param/$param=$value\nTODELETE/1 | grep -v ^TODELETE
#the break is included just for testing one parameter
break
done

Try surrounding your sed script with "quotes".

Sorry

It does not work with quotes, it just inserts an "n".

I just found a way around that( inspired from this forum ).

Seems like with this the old value gets replaced with the new value. Basically it deleted everything from "=" to the end of that line.

value1=vvv
param=ppp
value2=222
echo "$param=$value" | sed -n -e 's/^\([^=]*\)=.*/\1/p' | sed s/$param/$param=$value2/1

Still I'm not sure that my initial loop will be the most effective as there are many parameters to replace in both files and sometimes the parameters repeat.

I can have for example:

[name1]
param1=some_value
...
[name2]
param1=some_other_value