| description |
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Introduction to C++, Python, and Command-Line Scripting in the Penetration Testing Preliminary Skills & Programming course. |
Set of instructions that a computer may follow. It can be used to automate tasks, leaving specific things to be done by a machine instead of a human. Syntax and usage requirements are specific per language, but purpose keeps on being the same.
- Each programming language has its own syntax, which may require some instructions to use certain characters at the end of each statement while in another language this may not be needed.
- Variables might have different types depending on the programming language.
- Functions are normally allowed to be created. These are pieces of code responsible for some repeatable tasks. Might use arguments and return a value.
- Conditional statements are part of a programming language syntax.
- Loops are a set of instructions that need to be executed numerous times.
Level can tell how close these languages are to the hardware.
| Low level | High level |
|---|---|
| More complicated, more prone to create vulnerabilities | Ease of development |
| Can do anything with them, as they are so closed to the machine | Less flexible |
| Deep understanding is required | Writing custom functionality from scratch can be difficult |
| Assembly | Java, Python |
| They can't run on a bare OS, will need some kind of software already running |
| Programming Languages | Scripting Languages |
|---|---|
| Programming languages require a compiler. | Interpreted |
| A compiler will convert your plain-text program file into something readable by the language environment. | Software environment install on your computer can read a plain-text program file |