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Life & fun · February 24, 2021

Shellmath: Floating-point arithmetic directly in bash

Yes, Virginia, you can do floating-point arithmetic in Bash! - clarity20/shellmath

Shellmath: Floating-point arithmetic directly in bash launched on February 24, 2021 with 30 votes, #1,115 of 3,133 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.

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In plain words

Shellmath is a bash tool that enables floating-point arithmetic calculations directly within shell scripts. It allows developers and system administrators who work with bash to perform decimal math operations that the shell normally doesn't support natively. The tool addresses a common limitation in bash scripting where only integer arithmetic is available by default, making it useful for scripts requiring precise calculations.

written from the facts on this page · September 2026

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