Looking for "des" binary?

Question

I am unable to find the linux binary "des", which seems to exist according to this man page.

Or if someone has an alternate method, I am wanting to decrypt DES encrypted strings from the shell.

Answer 1

If this is a Debian based distribution, you can look up which packages provide which files online using http://packages.debian.org. I just looked up des and can't find anything like this as an executable. Also, this is man page from section 7 which is not where command references usually lie. I don't think it is either.

As for doing DES encryption from the command line, a quick google gave me this.