find and replace query

lightdensity · #1 (**permalink**) 05-26-2009

Hello ppl,

I am writing a script which finds multiple words match and replace it with new words.
I have server.conf file which looks like

Code:

### Welcome to server ###
### Server address and port ###
 
Server=127.0.0.1 
### Replace Server=0.0.0.0 ###
 
ServerPort=0
### Replace ServerPort=1 ####
### Enable Server ##
 
Enable Server=1
 
### Replace Enable Server=0 ###
### END OF FILE ##

-----------------------------------------------------------
i have written code for it as shown below

Code:

FILE="/opt/server.conf"
NEW_FILE="/opt/new_server.conf"
        
 IFS=""
        for line in `cat ${FILE}`; do
        #echo ${line}
        if [ -n "`echo ${line} | grep 'Server=127.0.0.1'`" ]
        then
                 echo ${line} | sed 's|Server=127.0.0.1|Server=0.0.0.0|g' >>$NEW_FILE
        elif [ -n "`echo ${line} | grep 'ServerPort=0'`" ]
        then
                echo ${line} | sed 's|ServerPort=0|ServerPort=1|g' >>$NEW_FILE
        elif [ -n "`echo ${line} | grep 'Enable Server=1'`" ]
        then
                echo ${line} | sed 's|Enable Server=1|Enable Server=0|g' >>$NEW_FILE
        else
                echo ${line} >>$NEW_FILE
        fi
        done

But when I run my script it only replaces the first match (Server=0.0.0.0). Remaining two matches doesnt change.
I don’t know what wrong with my code.

Can anyone help me on this?
Thanks in advance

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