base32 man page

base32 — base32 encode/decode data and print to standard output


base32 {{filename}}

base32 -d {{filename}}

{{somecommand}} | base32

{{somecommand}} | base32 -d


base32 [OPTION]... [FILE]


Base32 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.

-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
display this help and exit
output version information and exit

The data are encoded as described for the base32 alphabet in RFC 4648. When decoding, the input may contain newlines in addition to the bytes of the formal base32 alphabet. Use --ignore-garbage to attempt to recover from any other non-alphabet bytes in the encoded stream.


Written by Simon Josefsson.

Reporting Bugs

GNU coreutils online help: <>
Report base32 translation bugs to <>

See Also

Full documentation at: <…>
or available locally via: info '(coreutils) base32 invocation'


November 2016 GNU coreutils 8.26 User Commands