Subtlety and understated power

From the Bash Reference Manual, available online for Free, of course:

A Unix shell is both a command interpreter and a programming language…
While executing commands is essential, most of the power (and complexity) of shells is due to their embedded programming languages. Like any high-level language, the shell provides variables, flow control constructs, quoting, and functions.

These are not your forefather’s DOS batch files.

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This work by Ted Roche is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States.