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- nuke (1.00) - 'definitive' files eraser
-
- nuke is a small disc utility that allows you to erase files from the disc
- surface, filling their sectors with '0's or with a user-definable string.
- nuke can also perform the same operation on all the free space of the disc so
- that you can delete all the files you want in the usual way (eg. from the
- filer) and then nuke the space they previously used on the disc.
-
-
- Usage
- -----
-
- nuke [-options] [-s string] [-n number] pathname
- -f erase all the free space on disc
- -r recurse in directories
- -y don't ask for confirmation before nuking
- -s fill nuked sectors with "string" instead of '0'
- -v verbose mode
- -n overwrite the sectors "number" times
-
- If "pathname" is a directory name the -r options must be specified (unless
- you use -f, in which case the directory name will be ignored and the free
- space will be nuked).
-
-
- Why can nuke be useful?
- -----------------------
-
- I wrote this simple program since I am going to sell my old A410 and I don't
- like the idea that other people may be able to read some of my private data.
- In fact 'undeleting' a file is almost impossible on RISC OS, but someone can
- use a disc editor and (at least) read the text files (mails, sources, etc.)
- and eventually some file that is quite easy to identify (GIF, Draw, etc.).
- I think that nuke can be useful in a school or in any other environment where
- someone has to use a 'public' computer and doesn't want to leave some private
- (or compromising!) data on it.
- I implemented the option to overwrite more than once the sectors because I
- have been told that it could be possible to read part of the data if the
- sector has been overwritten only once (using some particular equipment)... I
- think this is a bit paranoic, though!
- The possibility to fill 'nuked' sectors with a user-defined string can be
- useful to leave some funny message to the eventual curious... especially if
- you *know* that someone will try to search for interesting text in the disc!
-
- Since I think that nobody will use nuke, if you use it and/or if you find
- some use for it, I will be really pleased to hear from you!
-
-
- Notes
- -----
-
- nuke only works on E-Format discs (it would be useless to use nuke into an
- image filing system, just nuke the whole image file!).
- The option to nuke the free space can be useful only if you want to 'clean' a
- disc (for example before selling it) but the files/directories nuke should be
- better for 'everyday use' (!). In fact, overwriting all the free space can be
- a long operation (especially if the disc is mostly empty).
- If nuke is stopped while it is working it may happen that you still have the
- files and the directories but they are already overwritten: in fact, nuke
- fills the sectors and then removes the files using a common wipe command.
-
-
- Disclaimer
- ----------
-
- nuke has been tested and always worked perfectly. Anyway, if it becomes crazy
- and it starts overwriting random sectors, I am sorry but I accept no
- responsability for that! Use it at your own risk.
-
-
- History
- -------
-
- 1.00 First released version.
-
-
- Thanks go to:
- -------------
-
- - Cristian Ghezzi for the idea to 'nuke' the free space
- - Julian Wright that recommended me to include the option to overwrite the
- sectors more than once and found a use for it...
-
-
- Conditions of use
- -----------------
-
- nuke is FreeWare: you can use and distribute it freely, provided that the
- whole archive is copied unaltered (including this help file).
-
-
- I can be contacted at the following address:
-
- Sergio Monesi
- Via Trento e Trieste 30
- 20046 Biassono (MI)
- Italy
-
- E-mail address:
- pel0015@cdc8g5.cdc.polimi.it
- If you don't receive a reply (or if the message is bounced) I can also be
- contacted at:
- sergio@phantom.com
- or:
- sergio@g386bsd.first.gmd.de
-