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Shell Programming and Scripting

Tr utility to Encrypt

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# 1  
Old 11-14-2005
Tr utility to Encrypt
I need some help.. I would like to make a script that uses the tr utility to "encrypt" a selected file. I need to know how to set up the script so that if i type encrypt(script name) the letter that i want to start the encryption and then the file name, that it starts with the entered letter, and changes that to a.

syntax: encrypt c file

it then makes all c's in the file now a, all the d's a+1 and so forth.. i think that the letter and the file both have to be parameters for the script.. if you can help me it would be much appreciated.

frank
# 2  
Old 11-15-2005
Frank The Tank,
Google for rot13 encryption which uses tr, rot13 example
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