base is a simple tool for simple conversion needs between 8-bit binary data
and a range of ASCII-based encodings such as base64, or hexadecimal.
Building instructions: In a Unix environment with the following tools
installed run "make".
- GNU make
- ghc (v8.10 tested, earlier may work, too)
Reproduced below is its help message. Note that the "named" parameter is
commonly much more helpful than specifying the alphabet manually.
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usage: base [OPTS] {-d | -e} {-a I:O:ALPH | NAMED}
Options:
-a I:O:ALPH use the ordered ALPH as alphabet, I and O are the input and
output group lengths in bytes and characters, respectively
-d decode from base-ALPH
-e encode to base-ALPH
-h display this help message
-i ignore non-alphabet characters in input
-p PAD use PAD as padding character
-r RFC-4648 interpretation of chunks to encode
-w COLS wrap encoded lines after COLS characters (default 76);
use 0 to disable line wrapping
As an alternative to '-a I:O:ALPH' the NAMED parameter refers to one of:
2msbf binary encoding (most significant bit first)
2lsbf binary encoding (least significant bit first)
16 hex encoding (RFC-4648 section 8)
16l hex encoding with lower-case symbols
32 same as 'base32' program (RFC-4648 section 6)
32hex extended hex alphabet base32 (RFC-4648 section 7)
45 base45 encoding (draft-faltstrom-base45-07)
64 same as 'base64' program (RFC-4648 section 4)
64url file- and URL-safe base64 (RFC-4648 section 5)
z85 ascii85-like encoding (ZeroMQ 32/Z85)
Environment variables affecting the behaviour:
BASE_COMPAT if set, the default mode is to encode; otherwise there is no
default
Newline characters in the input are ignored for decoding in all modes.
Written by Franz Brauße <fb@paxle.org>; License: BSD-2