Adding autocomplete to BBSimctl

Change-Id: I7853743deb319b7759180c0163473e6c03c4b9c5
diff --git a/internal/bbsimctl/commands/completion.go b/internal/bbsimctl/commands/completion.go
new file mode 100644
index 0000000..d7ad19f
--- /dev/null
+++ b/internal/bbsimctl/commands/completion.go
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2019-present Ciena Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package commands
+
+import (
+	"fmt"
+	"github.com/jessevdk/go-flags"
+	"github.com/opencord/bbsim/internal/bbsimctl/completion"
+)
+
+type BashOptions struct{}
+
+type CompletionOptions struct {
+	BashOptions `command:"bash"`
+}
+
+func RegisterCompletionCommands(parent *flags.Parser) {
+	parent.AddCommand("completion", "generate shell compleition", "Commands to generate shell completion information", &CompletionOptions{})
+}
+
+func (options *BashOptions) Execute(args []string) error {
+	fmt.Println(completion.Bash)
+	return nil
+}