phpman > man > BASENC(1)

BASENC(1)                                   User Commands                                  BASENC(1)



NAME
       basenc - Encode/decode data and print to standard output

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 mul‐
              tiple 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  alpha‐
       bet.  Use --ignore-garbage to attempt to recover from any other non-alphabet bytes in the en‐
       coded stream.

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

COPYRIGHT
       Copyright © 2020 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'



GNU coreutils 8.32                          January 2026                                   BASENC(1)