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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.50.1.
.TH BASENC "1" "February 2026" "GNU coreutils 9.10" "User Commands"
.SH NAME
basenc \- Encode/decode data and print to standard output
.SH SYNOPSIS
.B basenc
[\fI\,OPTION\/\fR]... [\fI\,FILE\/\fR]
.SH DESCRIPTION
.\" Add any additional description here
.PP
basenc encode or decode FILE, or standard input, to standard output.
.PP
With no FILE, or when FILE is \-, read standard input.
.PP
Mandatory arguments to long options are mandatory for short options too.
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc--base64'\fB\-\-base64\fP\X'tty: link'
same as 'base64' program (RFC4648 section 4)
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc--base64url'\fB\-\-base64url\fP\X'tty: link'
file\- and url\-safe base64 (RFC4648 section 5)
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc--base58'\fB\-\-base58\fP\X'tty: link'
visually unambiguous base58 encoding
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc--base32'\fB\-\-base32\fP\X'tty: link'
same as 'base32' program (RFC4648 section 6)
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc--base32hex'\fB\-\-base32hex\fP\X'tty: link'
extended hex alphabet base32 (RFC4648 section 7)
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc--base16'\fB\-\-base16\fP\X'tty: link'
hex encoding (RFC4648 section 8)
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc--base2msbf'\fB\-\-base2msbf\fP\X'tty: link'
bit string with most significant bit (msb) first
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc--base2lsbf'\fB\-\-base2lsbf\fP\X'tty: link'
bit string with least significant bit (lsb) first
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc-d'\fB\-d, \-\-decode\fP\X'tty: link'
decode data
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc-i'\fB\-i, \-\-ignore\-garbage\fP\X'tty: link'
when decoding, ignore non\-alphabet characters
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc-w'\fB\-w, \-\-wrap=\,COLS\fP\X'tty: link'\/\fR
wrap encoded lines after COLS character (default 76).
Use 0 to disable line wrapping
.TP
\X'tty: link https://www.gnu.org/software/coreutils/manual/coreutils.html#basenc--z85'\fB\-\-z85\fP\X'tty: link'
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
.TP
\X'tty: link https://www.gnu.org/software/coreutils/basenc#basenc--help'\fB\-\-help\fP\X'tty: link'
display this help and exit
.TP
\X'tty: link https://www.gnu.org/software/coreutils/basenc#basenc--version'\fB\-\-version\fP\X'tty: link'
output version information and exit
.PP
When decoding, the input may contain newlines in addition to the bytes of
the formal alphabet. Use \fB\-\-ignore\-garbage\fR to attempt to recover
from any other non\-alphabet bytes in the encoded stream.
.SH "ENCODING EXAMPLES"
.PP
.nf
.RS
$ 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
.RE
.fi
.SH AUTHOR
Written by Simon Josefsson and Assaf Gordon.
.SH "REPORTING BUGS"
Report bugs to: bug\-coreutils@gnu.org
.br
GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
.br
General help using GNU software: <https://www.gnu.org/gethelp/>
.br
Report any translation bugs to <https://translationproject.org/team/>
.SH COPYRIGHT
Copyright \(co 2026 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
.br
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
.SH "SEE ALSO"
Full documentation <https://www.gnu.org/software/coreutils/basenc>
.br
or available locally via: info \(aq(coreutils) basenc invocation\(aq
|
