I have filesi in a direcotry that start with different names but have dates in the format 01212006. Along with these files there are also files with different dates. What i want to do is copy all the files that have 01212006 in them to 01072007 and move the old files to different directory.

For e.g file of interest : abc.01212006.1.dat
file of no interest abc.01262006.1.dat

I need the file of interest to be copied to abc.01072007.1.dat and then move the old file to diffrerent directory. How can I acheive this?