base64 is a command line utility which encodes and decodes files in this format. It can be used within a pipeline as an encoding or decoding filter, and is most commonly used in this manner as part of an automated mail processing system.
12 --copyright Print program copyright information.
-d ", " --decode Decodes the input, previously created by base64 , to recover the original input file.
-e ", " --encode Encodes the input into an output text file containing its base64 encoding.
-n ", " --noerrcheck Suppress error checking when decoding. By default, upon encountering a non white space character which does not belong to the base64 set, or discovering the input file is incorrectly padded to a multiple of four characters, base64 issues an error message and terminates processing with exit status 1. The -n option suppresses even this rudimentary error checking; invalid characters are silently ignored and the output truncated to the last three valid octets if the input is incorrectly padded.
-u ", " --help Print how-to-call information.
--version Print program version information.
Please report bugs and documentation errors to bugs@fourmilab.ch .
uudecode (1), uuencode (1), RFC1341
John Walker http://www.fourmilab.ch/
This software is in the public domain. Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, without any conditions or restrictions. This software is provided ``as is'' without express or implied warranty.
This is version 1.4 of base64 . The current version of this program may be downloaded from http://www.fourmilab.ch/webtools/base64.