#!/bin/sh
# To make this script executable, use the command: chmod +x 22_shebang.sh
# To run the script, use the command: ./22_shebang.sh
echo "This spell will teach you the basics of script execution headers in POSIX-compliant Bash"
echo "To study the code of the examples, please use the command: cat 22_shebang.sh"

# Shebang
echo "#!/bin/sh is the shebang, it specifies the interpreter to use for running the script"
echo "#!/usr/bin/env python is an alternative shebang to use for Python scripts"
echo "#!/usr/bin/env ruby is an alternative shebang to use for Ruby scripts"