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Fibonacci Sequence - Bash Typing CST Test

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Fibonacci Sequence — Bash Code

Generate Fibonacci numbers using recursion.

fibonacci() {
	if [ $1 -eq 0 ]; then
		echo 0
	elif [ $1 -eq 1 ]; then
		echo 1
	else
		echo $(( $(fibonacci $(( $1 - 1 ))) + $(fibonacci $(( $1 - 2 ))) ))
	fi
}

for i in {0..9}; do
	echo $(fibonacci $i)
done

Bash Language Guide

Bash (Bourne Again SHell) is a Unix shell and command language widely used for automation, scripting, DevOps, system administration, and shell-based application workflows. It is the default shell on most Linux systems and offers powerful command-line capabilities.

Primary Use Cases

  • ▸System automation
  • ▸Server maintenance scripts
  • ▸DevOps & CI/CD pipelines
  • ▸File management & text processing
  • ▸Docker and container orchestration
  • ▸Environment setup
  • ▸Scheduling cronjobs

Notable Features

  • ▸Unix pipelines
  • ▸Command substitution
  • ▸Scripting with loops & conditionals
  • ▸Environment variable management
  • ▸Job control & process management

Origin & Creator

Created by Brian Fox at the Free Software Foundation in 1989 as a free replacement for the Bourne Shell (sh).

Industrial Note

Bash excels in environments requiring quick system automation, CI/CD pipelines, container orchestration scripts, server automation, cloud provisioning scripts, and Unix-level glue code that ties together native tools.

More Bash Typing Exercises

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