finished 1.7 - 1.9 as well as wrote fetch.go

ch1/dmfetch/1_7.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"io"
+	"log"
+	"net/http"
+	"os"
+)
+
+func main() {
+	if len(os.Args[1:]) < 1 {
+		log.Fatal("requires args")
+	}
+	for _, i := range os.Args[1:] {
+		resp, err := http.Get(i)
+		if err != nil {
+			log.Print(err)
+			continue
+		}
+		defer resp.Body.Close()
+		_, err = io.Copy(os.Stdout, resp.Body)
+		if err != nil {
+			log.Print(err)
+		}
+	}
+}

ch1/dmfetch/1_8.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+)
+
+func main() {
+	if len(os.Args[1:]) < 1 {
+		log.Fatal("requires args")
+	}
+	for _, i := range os.Args[1:] {
+		if !strings.HasPrefix(i, "http://") {
+			i = "http://" + i
+		}
+		resp, err := http.Get(i)
+		if err != nil {
+			log.Print(err)
+			continue
+		}
+		defer resp.Body.Close()
+		body, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			log.Print(err)
+		}
+		fmt.Printf("%s", body)
+	}
+}

ch1/dmfetch/1_9.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+)
+
+func main() {
+	if len(os.Args[1:]) < 1 {
+		log.Fatal("requires args")
+	}
+	for _, i := range os.Args[1:] {
+		if !strings.HasPrefix(i, "http://") {
+			i = "http://" + i
+		}
+		resp, err := http.Get(i)
+		if err != nil {
+			log.Print(err)
+			continue
+		}
+		defer resp.Body.Close()
+		body, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			log.Print(err)
+		}
+		fmt.Printf("%s", body)
+		fmt.Printf("HTTP status code: %s\n", resp.Status)
+	}
+}

ch1/dmfetch/main.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+)
+
+func main() {
+	if len(os.Args[1:]) < 1 {
+		log.Fatal("requires args")
+	}
+	for _, i := range os.Args[1:] {
+		resp, err := http.Get(i)
+		if err != nil {
+			log.Print(err)
+			continue
+		}
+		defer resp.Body.Close()
+		body, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			log.Print(err)
+		}
+		fmt.Printf("%s", body)
+	}
+}