GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
CAESAR(6) FreeBSD Games Manual CAESAR(6)

caesar, rot13
decrypt caesar ciphers

caesar [rotation]

rot13

The caesar utility attempts to decrypt caesar ciphers using English letter frequency statistics. Caesar reads from the standard input and writes to the standard output.

The optional numerical argument rotation may be used to specify a specific rotation value. If invoked as rot13, a rotation value of 13 will be used.

The frequency (from most common to least) of English letters is as follows:

ETAONRISHDLFCMUGPYWBVKXJQZ

Their frequencies as a percentage are as follows:

E(13), T(10.5), A(8.1), O(7.9), N(7.1), R(6.8), I(6.3), S(6.1), H(5.2), D(3.8), L(3.4), F(2.9), C(2.7), M(2.5), U(2.4), G(2), P(1.9), Y(1.9), W(1.5), B(1.4), V(.9), K(.4), X(.15), J(.13), Q(.11), Z(.07).

Rotated postings to USENET and some of the databases used by the fortune(6) program are rotated by 13 characters.

November 16, 1993 FreeBSD 13.1-RELEASE

Search for    or go to Top of page |  Section 6 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.