Shell Scripts and Here Documents

"A here document (or heredoc) is a way of getting text input into a script without having to feed it in from a separate file. If you've got a small quantity of data you don't expect to change often, it's a quick and tidy way of keeping script and data together. For more complicated data or scripts, separating the two is still usually a better idea.

"The basic version of this in bash looks like this:

#!/bin/bash
cat << EOF
several lines of 
my data
listed here
EOF

"which will output

several lines of 
my data
listed here

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