#go example

Division Operator in C#

Description:

Division Operator in C#

using System; public class Program { public static void Main() { int x = 12; int y = 3; Console.WriteLine(x / y); } }

Output:

4

Description:

Exit Golang Example

package main import ( "fmt" "os" ) func main() { defer fmt.Println("!") os.Exit(3) }

Description:

Signals Golang Example

package main import ( "fmt" "os" "os/signal" "syscall" ) func main() { sigs := make(chan os.Signal, 1) done := make(chan bool, 1) signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM) go func() { sig :=

Exec’ing Processes Golang Example

Description:

Exec’ing Processes Golang Example

package main import ( "os" "os/exec" "syscall" ) func main() { binary, lookErr := exec.LookPath("ls") if lookErr != nil { panic(lookErr) } args := []string{"ls", "-a", "-l", "-h"} env := os.Environ() execErr := syscall.Exec(binary, args, env) if execErr != nil { panic(execErr) } }

Spawning Processes Golang Example

Description:

Spawning Processes Golang Example

package main import ( "fmt" "io/ioutil" "os/exec" ) func main() { dateCmd := exec.Command("date") dateOut, err := dateCmd.Output() if err != nil { panic(err) } fmt.Println("> date") fmt.Println(string(dateOut)) grepCmd := exec.Command("grep", "hello") grepIn, _ := grepCmd.StdinPipe() grepOut, _ :=…

HTTP Servers Golang Example

Description:

HTTP Servers Golang Example

package main import ( "fmt" "net/http" ) func hello(w http.ResponseWriter, req *http.Request) { fmt.Fprintf(w, "hello\n") } func headers(w http.ResponseWriter, req *http.Request) { for name, headers := range req.Header { for _, h := range headers { fmt.Fprintf(w, "%v: %v\n", name, h) } } } func main() { http.HandleFunc("/hello",…

HTTP Clients Golang Example

Description:

HTTP Clients Golang Example

package main import ( "bufio" "fmt" "net/http" ) func main() { resp, err := http.Get("http://gobyexample.com") if err != nil { panic(err) } defer resp.Body.Close() fmt.Println("Response status:", resp.Status) scanner := bufio.NewScanner(resp.Body) for i := 0; scanner.Scan() && i < 5; i++ { fmt.Println(scanner.Text()) } if err :=…

Environment Variables Golang Example

Description:

Environment Variables Golang Example

package main import ( "fmt" "os" "strings" ) func main() { os.Setenv("FOO", "1") fmt.Println("FOO:", os.Getenv("FOO")) fmt.Println("BAR:", os.Getenv("BAR")) fmt.Println() for _, e := range os.Environ() { pair := strings.SplitN(e, "=", 2) fmt.Println(pair[0]) } }