This is the source code of the traditional Hello World program.
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println! is a macro that prints text to the console.
A binary can be generated using the Rust compiler:
$ rustc hello.rs
rustc will produce a
hello binary that can be executed.
$ ./hello Hello World!
Click 'Run' above to see the expected output. Next, add a new line with a second
println! macro so that the output shows:
Hello World! I'm a Rustacean!