In Bash and other UNIX-like operating systems, a shebang (`#!`) is the character sequence placed at the beginning of a script. This line tells the system which interpreter to use when executing the script directly from the command line. By specifying the interpreter (e.g., Bash, Python, or Perl), the shebang ensures your script runs consistently across different environments, making it both portable and predictable. This article explains how to use a shebang in Bash scripts, override it when nec......