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rink - Unit calculator and dimensional analysis tool

rink
rink [EXPR]...
rink -f <FILE>
rink (-h | -V | --config-path)

Rink is a unit conversion and calculation tool which can be used for both small and simple arithmetic and more complex dimensionality analysis and other tasks.

--config-path

Prints a path to the config file, then exits.

--fetch-currency: Fetches the latest version of the currency data, then exits. Can be used as part of a cron job, possibly together with setting currency.cache_expiration_enabled to false.

-f, --file <file>

Reads expressions from a file, one per line, printing them to stdout and then exitting.

-h, --help

Print help information and then exits.

-V, --version

Prints the current version and then exits.

Returns 0 unless an error prevented rink from starting up.

NO_COLORS

If set to a non-empty string, rink will disable colored text rendering.

Rink looks for a configuration file in $XDG_CONFIG_DIR/rink/config.toml, see rink(5).

Rink relies on some data files, which are found using a search path. See rink-defs(5) and rink-dates(5).

Downloaded currency data is saved in $XDG_CACHE_DIR/rink/currency.json.

https://codeberg.org/tiffany/rink/issues

rink(5), rink(7), rink-defs(5), rink-dates(5)

2026-08-30 Rink Manual