Running a tight BASH script

A few things I like to do with important bash scripts so that they live on as useful tools for many years is:
1) Send error output to the standard system logger.
2) Clean up any child processes that were started
3) Clean up any temporary files


You don't always need all of these but they are good to have handy.

Notice how trap is used to call a function so that the exit of the script can do a few extra things.

#!/bin/bash

# Log any errors to the standard system logs
exec 2> >(logger -s -t $(basename $0))

# Clean up when the program exits
function CleanExit {
 # stop any long running commands
 for k in $(jobs -p); do { kill -p $k; }

 # remove any temporary files created
 # rm -f $TEMPFILE
 exit
}
trap "CleanExit" EXIT

# Your code goes here