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 

     

 

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