echo 'SGVsbG8gd29ybGQK' | base64 -decode Encoding fileĬreate a text file for testing: echo 'Hello world' > data.txtĮncode content of a text file and print result in the terminal: base64 data.txtĮncode content of a text file and save result in another file: base64 data.txt > out.txt Decoding fileĬreate a text file that contains Base64 encoded data: echo 'SGVsbG8gd29ybGQK' > encoded_data.txtĭecode content of a text file and print result in the terminal: base64 -decode encoded_data.txtĭecode content of a text file and save result in another file: base64 -decode encoded_data.txt > out. In computer programming, Base64 is a group of binary-to-text encoding schemes that represent binary data (more specifically, a sequence of 8-bit bytes) in sequences of 24 bits that can be represented by four 6-bit Base64 digits. Then you won't get the 'invalid input' error. Here's a bash command that can automatically pad the base64 string properly. Mac/BSD base64 -D does not require padding). Base64 encoded SHA256 hash became rather standard file checksum in OpenBSD recently. The package coreutils (installed by default in debian) carry both base32 and base64. Common command options -d Decode Base64-encoded data Command example To encode a string. You can use base64 <<< string and base64 -D <<< string to encode and decode a string in the terminal, or base64 -in file and base64 -D -in file to encode and decode a file. unix-linux-trinkets/little-utilities/base64-and-base85-encoding-awk-scripts. base64 command is available by default on my OS X 10.9.4. Other base64 decoders may be smarter and not require padding (e.g. Tip For additional information on Base64 encoding, see RFC 4648. Fallback base64 en-/decoder for systems that lack a native implementation. String can be encoded as follows: echo 'Hello world' | base64 Decoding stringįor Base64 decoding use -decode option. GNU's base64 -d requires proper padding (input length must be a multiple of 4). The base64 command can be used to perform Base64 encoding and decoding. This tutorial shows how to perform Base64 encoding and decoding in Linux. ![]() ![]() ![]() Base64 is an encoding and decoding scheme that often used to convert binary data to an printable ASCII text format, and vice versa.
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