Shell Programming and Scripting

while read line
do
str1=`grep 'customernumberR11' file1 | cut -c 20-21`
str2=`grep 'newnumberR11' file1 | cut -c 15-16`
if [ "$str1" -ne "$str2" ] ; then
sed -e "s/newnumberR11/ s/$str2/\$str1/g" $line
fi
done < file1

Can you show your input file and explain what are you trying to do?

<XMLFORMAT>
<customernumberR11>9</customernumberR11>
<newnumberR11>30</newnumberR11>
<customerdetailR11>

</XMLFORMT>
<XMLFORMAT>
<customernumberR11>20</customernumberR11>
<newnumberR11>18</newnumberR11>
<customerdetailR11>

</XMLFORMT>
<XMLFORMAT>
<customernumberR11>11</customernumberR11>
<newnumberR11>32</newnumberR11>
<customerdetailR11>

</XMLFORMT>


expected output:
<XMLFORMAT>
<customernumberR11>30</customernumberR11>
<newnumberR11>30</newnumberR11>
<customerdetailR11>

</XMLFORMT>
<XMLFORMAT>
<customernumberR11>18</customernumberR11>
<newnumberR11>18</newnumberR11>
<customerdetailR11>

</XMLFORMT>
<XMLFORMAT>
<customernumberR11>32</customernumberR11>
<newnumberR11>32</newnumberR11>
<customerdetailR11>

</XMLFORMT>

Code:

while read line
do
if [ $(expr match "$line" '<customernumberR11>') -ne 0 ] ; then 
	cust=$line
elif [ $(expr match "$line" '<newnumberR11>') -ne 0 ] ; then 
	str2=`echo $line | sed "s/<[^<>]*>//g"`
	echo $cust | sed "s/>[0-9]*</>${str2}</"
	echo $line
else
	echo $line
fi
done < file1

Two members with exactly the same problem ?

See the thread how to replace field for each record