Simple go function to prevent exiting program until SIGINT (Ctrl+C) or SIGTERM is received.

wait_for_signal.go

package main

import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
)

func main() {
	fmt.Println("Going to do something great!..")
	// go func() {
	//     Something you want to be continued
	// }
	fmt.Println("(I'll continue doing untill you interrupt 😎 )")

	waitForSignal()
	fmt.Println("Exiting program.")
}

// waitForSignal will prevent exiting the program untill Ctrl+C 
func waitForSignal() {
	sigs := make(chan os.Signal, 1)
	done := make(chan bool, 1)

	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)

	go func() {
		sig := <-sigs
		fmt.Printf("\nSignal received: ")
		fmt.Println(sig)
		done <- true
	}()

	<-done
}