Programming and Scripting :: variable help in bash

How would I make a variable equal to a chain of commands in a bash script?
I made a rather lengthy bash script but would like to shorten it up by somehow making a variable equal to a chain of commands that repeats itself numerous times in my script. Here's one of the few chain of commands I'm talking about:

echo "---------------------------------------------------" >> "$DVDARCHIVE"dvd-"$num"/moved.txt; echo "" >> "$DVDARCHIVE"dvd-"$num"/moved.txt

I tried googling but I couldn't figure out what I needed to do.

thanks for any help!

To make the output of a single command into a variable:

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VARIABLE=`command` #those are backticks, not single quotes

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VARIABLE=$(command)

However, I think a function is more appropriate in your case, if you want multiple commands in it:

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function_name(optional_parameters) {
command 1
command 2
command3
}

thanks again mikshaw! A function is what I wanted.

original here.