diff --git a/pkg/util/command_util.go b/pkg/util/command_util.go
new file mode 100644
index 000000000..b904a4987
--- /dev/null
+++ b/pkg/util/command_util.go
@@ -0,0 +1,23 @@
+/*
+Copyright 2018 Google LLC
+
+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 util
+
+// ResolvEnvironmentReplacement resolves replacing env variables in fp from envs
+// Ex: fp = $foo/newdir, envs = [foo=/foodir], then this should return /foodir/newdir
+func ResolveEnvironmentReplacement(fp string, envs []string) string {
+
+}
diff --git a/pkg/util/command_util_test.go b/pkg/util/command_util_test.go
new file mode 100644
index 000000000..3a65ebf87
--- /dev/null
+++ b/pkg/util/command_util_test.go
@@ -0,0 +1,17 @@
+/*
+Copyright 2018 Google LLC
+
+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 util