#!/bin/bash
basedir=$(pwd)
dat=$basedir/faker.abi_invnb.dat
fn=$1
invNb=$(cat $dat)
invNb=$(expr $invNb + 1)
echo $invNb > $dat
sed -i "s/<InvNb>[0-9]*</<InvNb>$invNb</" $fn

#!/usr/bin/python2.7

from xml.dom import minidom
import sys, os, time, os.path, math

xMl=sys.argv[1]
dat='/data/faker.abi_invnb.dat'
doc = minidom.parse(xMl)
invNb=open(dat).readline()
inc=int(invNb) + 1
print inc
dat_fajl=open(dat, 'w')
print >>dat_fajl,inc
dat_fajl.close()
invnb = doc.getElementsByTagName('InvNb')
print invnb[0].toxml()

5500000000000166
<InvNb>5371026698680001</InvNb>