#!/usr/bin/env python3 – Execute with a Python interpreter, using the env program search path to find it.

#!/usr/bin/pwsh – Execute the file using PowerShell.

#!/bin/bash – Execute the file using the Bash shell.

#!/bin/sh – Execute the file using the Bourne shell, or a compatible shell, assumed to be in the /bin directory.

In Solaris- and Darwin-derived operating systems (such as macOS), the file specified by interpreter must be an executable binary and cannot itself be a script. For example, if file /bin/A is an executable file in ELF format, file /bin/B contains the shebang #!/bin/A optparam, and file /bin/C contains the shebang #!/bin/B, then executing file /bin/C resolves to /bin/B /bin/C, which finally resolves to /bin/A optparam /bin/B /bin/C.

A chain of shebangs and wrappers yields a directly executable file that gets the encountered scripts as parameters in reverse order. On Linux and Minix, an interpreter can also be a script. any kind of file for which an interpreter was registered via the binfmt_misc mechanism (such as for executing Microsoft.a native executable, such as an ELF binary.In Linux, the file specified by interpreter can be executed if it has the execute rights and is one of the following: The optional-arg will include any extra spaces up to the end-of-line. There could be any number of spaces or tabs either before or after interpreter. The space between #! and interpreter is optional. In which interpreter is a path to an executable program. The form of a shebang interpreter directive is as follows: #! interpreter The shebang line is usually ignored by the interpreter, because the '#' character is a comment marker in many scripting languages some language interpreters that do not use the hash mark to begin comments still may ignore the shebang line in recognition of its purpose. For example, if a script is named with the path path/to/script, and it starts with the line #!/bin/sh, then the program loader is instructed to run the program /bin/sh, passing path/to/script as the first argument. 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. When a text file with a shebang is used as if it is an executable in a Unix-like operating system, the program loader mechanism parses the rest of the file's initial line as an interpreter directive. It is also called sharp-exclamation, sha-bang, hashbang, pound-bang, or hash-pling.

Python Dictionaries Access Items Change Items Add Items Remove Items Loop Dictionaries Copy Dictionaries Nested Dictionaries Dictionary Methods Dictionary Exercise Python If.Else Python While Loops Python For Loops Python Functions Python Lambda Python Arrays Python Classes/Objects Python Inheritance Python Iterators Python Polymorphism Python Scope Python Modules Python Dates Python Math Python JSON Python RegEx Python PIP Python Try.In computing, a shebang is the character sequence consisting of the characters number sign and exclamation mark ( #!) at the beginning of a script.

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