basenc (1) - Linux Manuals

basenc: Encode/decode data and print to standard output


basenc - Encode/decode data and print to standard output


basenc [,OPTION/]... [,FILE/]


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.

same as 'base64' program (RFC4648 section 4)
file- and url-safe base64 (RFC4648 section 5)
same as 'base32' program (RFC4648 section 6)
extended hex alphabet base32 (RFC4648 section 7)
hex encoding (RFC4648 section 8)
bit string with most significant bit (msb) first
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
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
display this help and exit
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.


$ 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


Written by Simon Josefsson and Assaf Gordon.


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Copyright © 2020 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.


Full documentation <>
or available locally via: info '(coreutils) basenc invocation'