What does the 'go build' command do in Go?

The go build command in Go compiles the source code files in the current directory (or specified files) into an executable binary. It processes the Go files, resolves dependencies, and produces a binary that can be executed directly from the command line.

For example, if you have a Go file named hello-world.go, you can run:

go build hello-world.go

This will create an executable named hello-world (or hello-world.exe on Windows) in the same directory. You can then run the binary using:

./hello-world

This command is commonly used to prepare Go applications for deployment or testing.