BASENC(1) User Commands BASENC(1)

basenc - Encode/decode data and print to standard output

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.

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.

$ printf '\376\117\202' | basenc --base64
$ printf '\376\117\202' | basenc --base64url
$ printf '\376\117\202' | basenc --base32
$ printf '\376\117\202' | basenc --base32hex
$ printf '\376\117\202' | basenc --base16
$ printf '\376\117\202' | basenc --base2lsbf
$ printf '\376\117\202' | basenc --base2msbf
$ printf '\376\117\202\000' | basenc --z85

Written by Simon Josefsson and Assaf Gordon.

GNU coreutils online help:
Report any translation bugs to

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

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

March 2024 GNU coreutils 9.5