Can `export` be used with functions?

Yes, export can be used with functions in Bash, but it works a bit differently than with variables. When you export a function, it makes the function available to child processes (subshells) that are spawned from the current shell session.

Example of Exporting a Function

1. Defining a Function:

   my_function() {
       echo "Hello from my_function!"
   }

2. Exporting the Function:

   export -f my_function

3. Using the Function in a Subshell:

   bash -c 'my_function'  # Output: Hello from my_function!

Summary

• You can export a function using export -f function_name.
• Once exported, the function can be called in any child process or subshell, allowing for greater flexibility in script execution.