webinstall.dev/go Star on GitHub

To update or switch versions, run webi go@stable (or @v1.21, @beta, etc).

Files

~/.config/envman/PATH.env
~/.local/opt/go/
~/go/

Cheat Sheet

Go is designed, through and through, to make Software Engineering easy. It's fast, efficient, reliable, and something you can learn in a weekend.

If you subscribe to The Zen of Python, you'll love > Go.

You may also want to install the Go IDE tooling: go-essentials.

Hello World

1. Make and enter your project directory

   mkdir -p ./hello/cmd/hello
   pushd ./hello/
   

2. Initialize your go.mod to your git repository url:

   go mod init github.com/example/hello
   

3. Create a hello.go

   cat << EOF >> ./cmd/hello/hello.go
   package main
   
   import (
     "fmt"
   )
   
   func main () {
     fmt.Println("Hello, World!")
   }
   EOF
   

4. Format, build, and run your ./hello

   go fmt ./...
   go build -o hello ./cmd/hello/
   ./hello
   

   You should see your output:

   > Hello, World!
   

How to run a Go program as a service

On Linux:

# Install serviceman (compatible with systemd)
webi serviceman

# go into your programs 'opt' directory
pushd ./hello/

# swap 'hello' and './hello' for the name of your project and binary
sudo env PATH="$PATH" \
    serviceman add --system --username "$(whoami)" --name hello -- \
    ./hello

# Restart the logging service
sudo systemctl restart systemd-journald