BASE64(1)                       User Commands                      BASE64(1)

NAME         top

       base64 - base64 encode/decode data and print to standard output

SYNOPSIS         top

       base64 [OPTION]... [FILE]

DESCRIPTION         top

       Base64 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

       -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

       --help display this help and exit

              output version information and exit

       The data are encoded as described for the base64 alphabet in RFC
       4648.  When decoding, the input may contain newlines in addition to
       the bytes of the formal base64 alphabet.  Use --ignore-garbage to
       attempt to recover from any other non-alphabet bytes in the encoded

AUTHOR         top

       Written by Simon Josefsson.

REPORTING BUGS         top

       GNU coreutils online help: <>
       Report base64 translation bugs to

COPYRIGHT         top

       Copyright © 2018 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.

SEE ALSO         top

       Full documentation at:
       or available locally via: info '(coreutils) base64 invocation'

COLOPHON         top

       This page is part of the coreutils (basic file, shell and text
       manipulation utilities) project.  Information about the project can
       be found at ⟨⟩.  If you have a
       bug report for this manual page, see
       ⟨⟩.  This page was obtained
       from the tarball coreutils-8.30.tar.xz fetched from
       ⟨⟩ on 2018-10-29.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail

GNU coreutils 8.30                July 2018                        BASE64(1)