add a multi-send script for rgas

scripts/multi-sender/addresses.txt

@@ -0,0 +1 @@
+

scripts/multi-sender/main.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"os/exec"
+)
+
+func main() {
+	change_env := exec.Command("rooch", "env", "switch", "--alias", "test")
+	out, err := change_env.CombinedOutput()
+	if err != nil {
+		fmt.Printf("combined out:\n%s\n", string(out))
+		log.Fatal("change_env.Run() failed with %s\n", err)
+	}
+	fmt.Printf("combined out\n%s\n", string(out))
+
+  read_file("addresses.txt")
+}
+
+func read_file(path string) error {
+  f, err := os.OpenFile(path, os.O_RDONLY, 0666)
+  if err != nil {
+    return err
+  }
+
+  defer f.Close()
+
+  reader := bufio.NewReader(f)
+
+  var results []string
+  for {
+    line, _, err := reader.ReadLine()
+    if err == io.EOF {
+      break
+    }
+    // rooch account transfer --to rooch1z6jp5k2vj2hs75zdqe5rhgdaj4w3hjnm693ks6xaxxdr78vvxreqwrrvpt --coin-type 0x3::gas_coin::RGas --amount 1
+    send := exec.Command("rooch", "account", "transfer", "--coin-type", "0x3::gas_coin::RGas", "--amount", "1", "--to", string(line))
+    _, err = send.CombinedOutput()
+    if err != nil {
+      // fmt.Printf("combined out:\n%s\n", string(out))
+      fmt.Println(string(line), "=> ok")
+      // log.Fatal("send.Run() failed with %s\n", err)
+      log.Fatal("send failed\n")
+    }
+    // fmt.Printf("combined out\n%s\n", string(out))
+
+
+    // fmt.Println(string(line))
+    results = append(results, string(line))
+  }
+  fmt.Printf("Read results: %v\n", results)
+  return nil
+}