These are scripts for SRM (or Secure Remove) which,by defult, uses gutmann 38 passes to remove files securely.
the wiki page for SRM [http://en.wikipedia.org/wiki/srm_(unix)]
Contains two scripts:
*Secure Remove : removes file using srm defult gutmann 38 passes.
*Move To... Securely : moves file to new location and removes the source file using SRM.(again with 38 passes)
This blog compares srm with shred