How to use functions in a BASH shell script

BASH can deal with simple functions, and they are defined like this:

# this defines the function
function testing {
    echo "Hi there!"

# this calls our function

As far as I know, BASH functions cannot take or return parameters.

Jay is founder of WP Hosting, a boutique style managed WordPress hosting and support service. He has been working with Plesk since version 9 and is a qualified Parallels Automation Professional. In his spare time he likes to develop iOS apps and WordPress plugins, or drawing on tablet devices. He blogs about his coding journey at and

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