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basenc

(1)

Encode/decode data and print to standard output

User commands13 optionscoreutils 9.7-3
basenc [OPTION]... [FILE]

Options

13
--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--wrapCOLS

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

DESCRIPTION

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.

same as 'base64' program (RFC4648 section 4)
file- and url-safe base64 (RFC4648 section 5)
same as 'base32' program (RFC4648 section 6)
extended hex alphabet base32 (RFC4648 section 7)
hex encoding (RFC4648 section 8)
bit string with most significant bit (msb) first
bit string with least significant bit (lsb) first
decode data
when decoding, ignore non-alphabet characters
wrap encoded lines after COLS character (default 76). Use 0 to disable line wrapping
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
display this help and exit
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.

ENCODING EXAMPLES

$ 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
AUTHOR


Written by Simon Josefsson and Assaf Gordon.
REPORTING BUGS


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SEE ALSO


Full documentation
    https://www.gnu.org/software/coreutils/basenc
  

  or available locally via: info '(coreutils) basenc invocation'


Packaged by Debian (9.7-3)
  

  Copyright © 2025 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.