• The character sequence consisting of the characters number sign and exclamation mark (#!) at the beginning of a script. On Unix-like operating systems, when a text file has a shebang, it is interpreted as an executable file. In this case, the program loader mechanism parses the rest of the file’s initial line as an interpreter directive. The loader executes the specified interpreter program, passing to it as an argument the path that was initially used when attempting to run the script, so that the program may use the file as input data. ← Wikipedia

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