How to import functions in a bash script?

I found this nice post in ubuntuforum.org: http://ubuntuforums.org/showthread.php?t=664657

Re: $bash - how to import functions in a file

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you can create a file of frequently used variable, functions, etc in a ".cfg" file and then at the top of your script include one of these lines... they all do the same thing!

Code:

. $HOME/prefs.cfg

Code:

$include $HOME/prefs.cfg

Code:

source $HOME/prefs.cfg

I found this solution in the "Bash Cookbook" (Albing, Vossen, & Newham)...every bash scripter should have a copy of this book within each reach!