Mr Avinash has developed the iTrans package for printing texts in
many Indian languages and encodings.
URL: http://www.aczone.com/itrans/ (Thanks FSUG-Bangalore)

One Day One Command
===================

shred — Overwrite/Delete a file securely.

Summary:

Overwrite the specified file repeatedly and remove, in order to make
it harder for even very expensive hardware probing to recover the
data.

Example:

$ shred file — Repeatedly overwrite the file content with random data.

$ shred -v file — Show progress info.

$ shred -n 5 file — Overwrite 5 times instead of the default is 25.

$ shred -x file — Use exact file size. Don’t round off.

$ shred -z file — At the end of shred, overwrite the file with zeros.

$ shred -u file — Overwrite, Truncate and Remove the file.

Read: man shred