Rename small part of multiple files in middle of name using Bash?

Question

I\'d just like to change this

cc211_AMBER_13062012i.II  cc211_GROMOS_13062012i.II
cc211_CHARM_13062012i.II  cc211_OPLS_13062012i.II

to

Answer 1

I'm using a pure Linux solution:

### find all files that contains _DES in name and duplicate them adding _AUXLOCAL
for f in **/*_DES*; do
    cp "$f" "${f%.DES}_AUXLOCAL"
done 
###Rename all _AUXLOCAL files, removing _DES to _LOCAL
for f in **/*_AUXLOCAL*; do
  mv "$f" "${f/_DES/_LOCAL}"
done
###Rename all _AUXLOCAL files, removing _AUXLOCAL
for f in **/*_AUXLOCAL*; do
  mv "$f" "${f/_AUXLOCAL/}"
done

I hope it helps