fix: Switch to using bash env to make module work on NixOS and BSD (#117

)

* POSIX compliance - to make it work on NixOS and BSD

* switching to bash to make shellcheck happy

examples/dependency_example/scripts/script.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Copyright 2018 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -13,7 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-#!/bin/sh
 
 for i in {1..5}
 do

examples/script_example/scripts/script.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 # Copyright 2018 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -13,8 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-#!/bin/sh
-
 GCLOUD_LOCATION=$(command -v gcloud)
 echo "Using gcloud from $GCLOUD_LOCATION"
 

modules/kubectl-wrapper/scripts/kubectl_wrapper.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Copyright 2020 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");

scripts/check_components.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Copyright 2020 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");