basenc - Man Page

• Encode a file with base64 encoding: basenc --base64 path/to/file
• Decode a file with base64 encoding: basenc --decode --base64 path/to/file
• Encode from stdin with base32 encoding with 42 columns: command | basenc --base32 -w42
• Encode from stdin with base32 encoding: command | basenc --base32

tldr.sh

basenc [OPTION]... [FILE]

basenc encode or decode FILE, or standard input, to standard output.

With no FILE, or when FILE is -, read standard input.

Mandatory arguments to long options are mandatory for short options too.

--base64

same as 'base64' program (RFC4648 section 4)

--base64url

file- and url-safe base64 (RFC4648 section 5)

--base32

same as 'base32' program (RFC4648 section 6)

--base32hex

extended hex alphabet base32 (RFC4648 section 7)

--base16

hex encoding (RFC4648 section 8)

--base2msbf

bit string with most significant bit (msb) first

--base2lsbf

bit string with least significant bit (lsb) first

-d,  --decode

decode data

-i,  --ignore-garbage

when decoding, ignore non-alphabet characters

-w,  --wrap=COLS

wrap encoded lines after COLS character (default 76). Use 0 to disable line wrapping

--z85

ascii85-like encoding (ZeroMQ spec:32/Z85); when encoding, input length must be a multiple of 4; when decoding, input length must be a multiple of 5

--help

display this help and exit

--version

output version information and exit

When decoding, the input may contain newlines in addition to the bytes of the formal alphabet.  Use --ignore-garbage to attempt to recover from any other non-alphabet bytes in the encoded stream.

    $ printf '\376\117\202' | basenc --base64
    /k+C

$ printf '\376\117\202' | basenc --base64url
_k-C

$ printf '\376\117\202' | basenc --base32
7ZHYE===

$ printf '\376\117\202' | basenc --base32hex
VP7O4===

$ printf '\376\117\202' | basenc --base16
FE4F82

$ printf '\376\117\202' | basenc --base2lsbf
011111111111001001000001

$ printf '\376\117\202' | basenc --base2msbf
111111100100111110000010

$ printf '\376\117\202\000' | basenc --z85
@.FaC

Written by Simon Josefsson and Assaf Gordon.

GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>

Copyright © 2024 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

Full documentation <https://www.gnu.org/software/coreutils/basenc>
or available locally via: info '(coreutils) basenc invocation'

base32(1), base64(1).