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RPN in Bash

Bash

Links of Relevance

The home page of bash
The Bourne-Again SHell manual
The maintainer's bash page
Bash reference manual
A man page for bash
The Linux Documentation Project (TLDP)
Bash guide for beginners
Advanced bash-scripting guide

POSIX.1-2017, 2018 Edition Base Specifications (including ‘Shell and Utilities’)

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