Embed TAR file in a shell script

embeddedPayload.sh

#!/bin/bash

# Instructions:
#       1) Create your TAR archive
#               tar -czpf file.tar <file1> <file2> ... <fileN>
#       2) Append the TAR file contents to the script
#               cat file.tar >> embeddedPayload.sh
#       3) Run script. (./embeddedPayload.sh)


echo "Bash Source: "${BASH_SOURCE[0]}


# Script Varibles
SCRIPT_DIR="$(cd -P "$( dirname "${BASH_SOURCE[0]}" )" ; pwd)"
SKIP=$(awk '/^__TARFILE_FOLLOWS__/ { print NR + 1; exit 0; }' $0)

echo "Script Dir: " $SCRIPT_DIR
echo "Skip: "$SKIP

# Extract
echo "Extracting install ... "
tail -n +${SKIP} $0 | tar -zpvx

exit 0
# NOTE: Don't place any newline characters after the last line below.
__TARFILE_FOLLOWS__

what does TARFILE_FOLLOWS last line of the script mean?

@Xphobia - it's a marker; see how it is used on line 16.