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spark

Usage
spark [--min=<n>] [--max=<n>] [numbers...]

Renders a Unicode sparkline bar chart for a sequence of numbers. Reads numbers from arguments or from stdin if none are provided. Optional –min and –max clamp the scale range.

Arguments:

--min=<n> Minimum value for scale (default: list minimum)
--max=<n> Maximum value for scale (default: list maximum)
numbers... Space-separated numbers to chart; reads stdin if omitted
-v, --version Print version
-h, --help Show usage help
Examples
spark 1 1 2 5 14 42
seq 64 | sort --random-sort | spark
echo "3 7 2 9 1" | spark