Shell Programming and Scripting

 sed 's/\>\</\>\\n\</g' input

<?xml version="1.0" encoding="UTF-8"?>\n<Root>\n<Person>\n<Name>John</Name>\n</Person>\n<Person>\n<Name>John</Name>\n</Person>\n</Root>

$ sed 's/></>\n</g' input
<?xml version="1.0" encoding="UTF-8"?>
<Root>
<Person>
<Name>John</Name>
</Person>
<Person>
<Name>John</Name>
</Person>
</Root>

<?xml version="1.0" encoding="UTF-8"?>n<Root>n<Person>n<Name>John</Name>n</Person>n<Person>n<Name>John</Name>n</Person>n</Root>

 sed "s/></>\\`echo -e '\n\r'`</g" input

#! /usr/bin/python

import xml.parsers.expat

count=0

def start_element(name, attrs):
        global count
        if name == "Name":
                count+=1

f=open('infile.xml')

p=xml.parsers.expat.ParserCreate()
p.StartElementHandler=start_element
p.ParseFile(f)
print count

$ wc -l infile.xml
1 infile.xml

$ time ./infile.py
100000

real    0m1.187s
user    0m1.168s
sys     0m0.016s

$ grep 'model name' /proc/cpuinfo
model name      : Intel(R) Atom(TM) CPU N270   @ 1.60GHz
model name      : Intel(R) Atom(TM) CPU N270   @ 1.60GHz