dk_script.sh

#!/bin/bash

##############################################################
#dirty script hopefully will replace 2 constant parameters as described below
#######
#target.xml is the file in which 2 parameters will be replaced
#from file1.txt and file2.txt
#the two parameters are constant xxx and yyy
#######


if [ ${1} = "target.xml"  ]
then
        echo "MESSAGE: target xml given"
else
        echo "MESSAGE: target xml not given"
fi

#######just throwing out the strings
NUMBER1=`wc -l file1.txt`
STRING1=`cat file1.txt`
COUNT=0
echo "MESSAGE: Found ${NUMBER1} number of strings to replace"
echo "MESSAGE: The strings are ${STRING1}"


######using sed to replace the constant####

for i in `cat file1.txt` [[I need an AND operator here]]] j in `cat file2.txt`
do
    TARGET1=${i}
    TARGET2=${j}
    echo "replacing xxx with ${TARGET1}"
    echo "replacing yyy with ${TARGET2}"

    sed s/xxx/${TARGET1}/g s/yyy/${TARGET2}/g ${1}> ${TARGET1}_output.xml


done

exit 0