This projects supplies both the c++script utility and a library.

The library provides means to do many tasks normally done in shell script
using ranges and views (appeared in C++ 20).

The utility allows you to create scripts, written in C++. You simply
write a script file by entering the following line

#!/usr/bin/c++script

Then you enter normal C++ code as if you were already inside the main function.
An hello world script looks like this

#!/usr/bin/c++script
cout << "hello world"

The following script prints the C++ files in a directory

#!/usr/bin/c++script
for (auto f:DIRNAME(".").ls | views::match("*.cc") | DIRNAME::stat()){
	println ("File {} size {}\n",f.name,f.size);
}

Special variables:

args[] is a std::vector containing the command line argument, without the program name itself.

envs is a const std::map containing all environnent variables
	cout << envs["PATH"] << "\n"
	is equivalent to
	echo $PATH