UGU Unix Guru Universe
For Unix Admins, By Unix Admins
Follow ugucom on Twitter      Search  in 
Home
BEGINNERS & USERS

Events

Internet
 
 Linux
BEGINNERS & USERS
Software
Linux Vendors
Usenet NewsGroups
Books & Publications
 
 Shop
Cool Admin Gifts!
Gadgets
T-Shirts
Books
 
 Unix Guru Universe
About
Add Link
Feedback
 
 
UGU: Unix Guru Universe - Unix Tip #4515- July 22, 2013 - Home : Help : Today's Tip
Unix Tip #4515- July 22, 2013

ROTATE THE ALPHABET


Rot13 simply rotates any
alphabet characters but 13
places, so the letter 'a'
becomes a letter 'n', and
an 'x' becomes a 'k' etc...

To encode a file type:

% rot13

And repeat to decode.

(Note original file is
overwritten by encrypted
version.)

Simply create this small
script, and save with the
filename of 'rot13'
remembering to set
appropriate permissions.


#!/usr/local/bin/bash

tr '[a-m][n-z][A-M][N-Z]' '[n-z][a-m][N-Z][A-M]' < $1 1>temp1;

mv temp1 $1;


This tip generously supported by: dan.mcgrath@virginmobile.com

NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


LAST 5 TIPS
4514 - RECREATING DIRECTORY TREES
4513 - DID IT REBOOT?
4512 - TERMINAL RESET
4511 - RENICE CPU HOGS
4510 - NICE NOT SO NICE


I want to SUBSCRIBE and get a UGU Tip everyday.
I want to UNSUBSCRIBE and NOT get a UGU Tip everyday.

If you have a UNIX TIP let us know, we just may use it:
(All tips become the property of the Unix Guru Universe)
Email Address:

Yes, email me a Hot Unix Tip everday.

Enter Hot Unix Tip (optional):

Yes, I will support this tip

Captcha (not case sensitive):


Please enter the above letters:

 
Copyright 1994-2011 Unix Guru Universe