Need to have cut command!

Question

Hi.. Here i need to cut 2013.11.0,2.3.1,2.0.0,1.0 alone and need to put it in a text file using cut commands
<A4Client>rd-ec-fulfill-2013.11.0</A4Client>
<A4Client>rd-apra-pur-dom-2.3.1</A4Client>
<A4Client>rd-c3-aip-web-adm-2.0.0</A4Client>
<A4Client>rd-c3-fb-vb-fb-vb-1.0-POC</A4Client>
Here i use to get these stuff from a logfile using while loop,so i need a probably cut command which should satisfy all the scenarios

Answer 1

Perhaps it will be much easier to do the following:
$ cat infile.txt
<A4Client>rd-ec-fulfill-2013.11.0</A4Client>
<A4Client>rd-apra-pur-dom-2.3.1</A4Client>
<A4Client>rd-c3-aip-web-adm-2.0.0</A4Client>
<A4Client>rd-c3-fb-vb-fb-vb-1.0-POC</A4Client>
$ cat script1
#!/bin/bash
while read line; do
   line=${line#<A4Client>}
   line=${line%</A4Client>}
   line=$(echo $line | tr "-" "\n")
   for item in $line; do
      echo $item | grep '\.'
   done
done < infile.txt > outfile.txt
$ ./script1
$ cat outfile.txt
2013.11.0
2.3.1
2.0.0
1.0