$ curl cheat.sh/
# base64
# Encode or decode file or standard input to/from Base64, to standard output.
# More information: <https://www.gnu.org/software/coreutils/base64>.

# Encode the contents of a file as base64 and write the result to `stdout`:
base64 path/to/file

# Decode the base64 contents of a file and write the result to `stdout`:
base64 --decode path/to/file

# Encode from `stdin`:
somecommand | base64

# Decode from `stdin`:
somecommand | base64 --decode

$
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