Find go version?

 Find go version :Type 

go version

Print environment variables in linux

printenv

GOROOT is a variable that defines where your Go SDK is located.In my computer /usr/local/go. You do not need to change this variable, unless you plan to use different Go versions.

 

GOPATH is the root of your workspace and contains the following folders:

• src/: location of Go source code (for example, .go, .c, .g, .s ).

• pkg/: location of compiled package code (for example, .a ).

• bin/: location of compiled executable programs built by Go.

  How to find GOPATH and GOROOT in your system?

  go env GOROOT

  go env GOPATH

  GOPATH is used to resolve import statements

  If the environment variable is unset, GOPATH defaults to a subdirectory named “go” in the user’s home directory. To check this, enter the following command:

  On Linux:

  $go env GOPATH 

   $HOME/go

  When using modules in Go, the GOPATH is no longer used to determine 
  imports. However, it is still used to store downloaded source code in pkg and compiled commands bin. 

   Go modules

  A module is a collection of packages that are released, versioned, and distributed together. Modules may be downloaded directly from version control repositories or from module proxy servers.

  A module is identified by a module path, which is declared in a go.mod file, together with information about the module's dependencies. The module root directory is the directory that contains the go.mod file.

   

  Go environment variables

  go <command> [arguments]

  The commands are 

  bug         start a bug report
  build       compile packages and dependencies
  clean       remove object files and cached files
  doc         show documentation for package or symbol
  env         print Go environment information
  fix         update packages to use new APIs
  fmt         gofmt (reformat) package sources
  generate    generate Go files by processing source
  get         add dependencies to current module and install them
  install     compile and install packages and dependencies
  list        list packages or modules
  mod         module maintenance
  run         compile and run Go program
  test        test packages
  tool        run specified go tool
  version     print Go version
  vet         report likely mistakes in packages