Shell Programming and Scripting

#!/bin/ksh

touch optFile         # create empty output file
echo "Enter tag name:\c"       # ask input tag name. E.g. "x" or "y"
read tag                          # read input

cat xmlFile | while read line     # read each line of xmlfile
do
   if [ "$line" = ".*\<tag name\=\"$tag\".*" ] ; then         # if line contains matching tag then
       echo "$line" >> optFile                                      # write original line in output file
       echo "\<sometext\/\>" >> optFile                          # append extra line after matching tag line in output file
   else                                                                      # else
       echo "$line" >> optFile                                     # write line as it is in output file
   fi
done