System.find_executable
You're seeing just the function
find_executable
, go back to System module for more information.
Specs
Locates an executable on the system.
This function looks up an executable program given
its name using the environment variable PATH on Windows and Unix-like
operating systems. It also considers the proper executable
extension for each operating system, so for Windows it will try to
lookup files with .com
, .cmd
or similar extensions.