Base64 encoding and decoding

[Mihai]

We have the file test.txt with the following content

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$ cat test.txt
123
321

Encode the file

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$ base64 test.txt > test.txt.base64
$ cat test.txt.base64
MTIzCjMyMQo=

The content for the new file changed
To decode the file to its original form, execute the command

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$ base64 -d test.txt.base64
123
321

For the encoding[1] and decoding[2] of an archive type file we have the following example

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[1]$ tar czvf - folder | base64 > folder.tar.tgz.b64
[2]$ base64 -d folder.tar.tgz.b64 | tar xzvf -