#!/bin/bash

export a='good'
echo $a

# # bad
# snafu() {
#	a='broken'
# }

# # usual fix by using local
# snafu() {
# 	local a='broken'
# }

# # subshell version also possible, no local needed
# # https://cuddly-octo-palm-tree.com/posts/2021-10-31-better-bash-functions/
 snafu() (
	a='broken'
 )

snafu
echo $a