增加saastool功能

cmd/saastool/help.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+)
+
+// RunHelp 帮助
+func RunHelp(args ...string) error {
+	fmt.Println(strings.TrimSpace(usage))
+	return nil
+}
+
+const usage = `
+Usage:  [[command] [arguments]]
+
+The commands are:
+
+    write              Write user's bytes / uint32s / flags
+    read               Read user's bytes / uint32s / flags
+
+"help" is the default command.
+
+Use "saastool [command] -help" for more information about a command.
+`
+
+//    strip            Stripping redundant data from redis