Create temp dir in bash script

create_temp_dir.sh

#!/bin/bash

# See also: https://stackoverflow.com/questions/10982911/creating-temporary-files-in-bash

# Create temporary directory.
mydir=$(mktemp -d "${TMPDIR:-/tmp/}$(basename $0).XXXXXXXXXXXX")

# Remove on exit.
trap "rm -rf $mydir" EXIT

# YOUR SCRIPT HERE...