tobase

Base conversion made simple.

tobase is a command-line utility to covert to a given base.

Usage

tobase encodes raw data from standard input to standard output. Out-of-the-box, it can output to any base <= 16, or bases 58, 64, 94, and 95 (corresponding to bitcoin encodings, RFC 4648, printable non-spacelike ASCII characters, and the same ASCII characters including the space respectively). For other bases, an alphabet must be provided. Alphabets can be used for any base.

Usage: tobase BASE [ALPHABET]

Encodes raw data from stdin.
Set BASE to '--' to use alphabet length

Examples

$ echo -n 'A' | tobase 10
65

$ echo -n 'tobase' | tobase 58
K9BjCrdnstu

$ echo -n 'A' | tobase -- '0123456789ABCDEFGHIJ' # base 20
35

$ SECRET='foo'
$ ALPHABET='mycoolALPHAbet~!@#$%^&*()_+'
$ echo -n $SECRET | openssl dgst -sha256 -binary | tobase -- $ALPHABET
c^ycy@(m!lyP!&o*(t!L&#Hy!tAt_%L#!t~lA+^#!_L$Pe@AH(*A@b

Installation

git clone https://github.com/lukedmor/tobase
cp tobase/tobase /usr/local/bin/tobase