renumber again

072-exec/exec.go

@@ -0,0 +1,18 @@
+// ## Exec
+
+package main
+
+import "syscall"
+import "os"
+import "os/exec"
+
+func main() {
+	binary, lookErr := exec.LookPath("ls")
+	if lookErr != nil {
+		panic(lookErr)
+	}
+	execErr := syscall.Exec(binary, []string{"-a", "-l", "-h"}, os.Environ())
+	if execErr != nil {
+		panic(execErr)
+	}
+}