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Go Standard Library Cookbook by Radomir Sohlich

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Interacting with the Environment

In this chapter, the following recipes are covered:

  • Retrieving the Golang version
  • Accessing program arguments
  • Creating a program interface with the flag package
  • Getting and setting environment variables with default values
  • Retrieving the current working directory
  • Getting the current process PID
  • Handling operating system signals
  • Calling an external process
  • Retrieving child process information
  • Reading/writing from the child process
  • Shutting down the application gracefully
  • File configuration with functional options

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