Declaring, Exporting, and Reading Dynamic Variables in Bash

If you want to dynamically define and export variable names in Bash here is the TLDR;

# Define the name of the variable
key="my-dynamic-var-name"

# Declare it and export it
declare -gx "$key"="some-value"

To then access that value via a dynamically generated variable name

# Create a variable that contains the variable name
var_to_access="my-dynamic-var-name"

# Read the value
my_var_value=${!var_to_access}

Read the man page for declare for more details and read this article for a really good explanation and further examples.

To read the declare man page

help declare