basenc
Encode or decode file or standard input using a specified encoding, to standard output.
TLDR
Encode a file with base64 encoding
Decode a file with base64 encoding
Encode from stdin with base32 encoding with 42 columns
Encode from stdin with base32 encoding
SYNOPSIS
basenc [OPTION]... [FILE]
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.
- --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.
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
REPORTING BUGS
GNU coreutils online help:
<https://www.gnu.org/software/coreutils/>
Report any translation bugs to
<https://translationproject.org/team/>
COPYRIGHT
Copyright © 2023 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.
SEE ALSO
Full documentation <https://www.gnu.org/software/coreutils/basenc> or available locally via: info '(coreutils) basenc invocation'
AUTHOR
Written by Simon Josefsson and Assaf Gordon.