|
|
|
|
UGU: Unix Guru Universe - Unix Tip #4515- July 21, 2024
- Home : Help
: Today's Tip
Unix Tip #4515- July 21, 2024
ROTATE THE ALPHABET
ROTATE THE ALPHABET
Rot13 simply rotates any
Rot13 simply rotates any
alphabet characters but 13
alphabet characters but 13
places, so the letter 'a'
places, so the letter 'a'
becomes a letter 'n', and
becomes a letter 'n', and
an 'x' becomes a 'k' etc...
an 'x' becomes a 'k' etc...
To encode a file type:
To encode a file type:
% rot13
% rot13
And repeat to decode.
And repeat to decode.
(Note original file is
(Note original file is
overwritten by encrypted
overwritten by encrypted
version.)
version.)
Simply create this small
Simply create this small
script, and save with the
script, and save with the
filename of 'rot13'
filename of 'rot13'
remembering to set
remembering to set
appropriate permissions.
appropriate permissions.
#!/usr/local/bin/bash
#!/usr/local/bin/bash
tr '[a-m][n-z][A-M][N-Z]' '[n-z][a-m][N-Z][A-M]' < $1 1>temp1;
tr '[a-m][n-z][A-M][N-Z]' '[n-z][a-m][N-Z][A-M]' < $1 1>temp1;
mv temp1 $1;
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.
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
LAST 5 TIPS
4514
- RECREATING DIRECTORY TREES
4513
- DID IT REBOOT?
4513
- DID IT REBOOT?
4512
- TERMINAL RESET
4512
- TERMINAL RESET
4511
- RENICE CPU HOGS
4511
- RENICE CPU HOGS
4510
- NICE NOT SO NICE
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)
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)
|
|
| |
Copyright 1994-2024 Unix Guru Universe
|
|
|
|
|
Home
