Merge pull request #62657 from matthyx/master

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Update all script shebangs to use /usr/bin/env interpreter instead of /bin/interpreter

This is required to support systems where bash doesn't reside in /bin (such as NixOS, or the *BSD family) and allow users to specify a different interpreter version through $PATH manipulation.
https://www.cyberciti.biz/tips/finding-bash-perl-python-portably-using-env.html
```release-note
Use /usr/bin/env in all script shebangs to increase portability.
```

hack/make-rules/build.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2014 The Kubernetes Authors.
 #

hack/make-rules/clean.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2017 The Kubernetes Authors.
 #

hack/make-rules/cross.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2014 The Kubernetes Authors.
 #

hack/make-rules/helpers/cache_go_dirs.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2014 The Kubernetes Authors.
 #

hack/make-rules/make-help.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2016 The Kubernetes Authors.
 #

hack/make-rules/test-cmd-util.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2016 The Kubernetes Authors.
 #
@@ -657,7 +657,7 @@ run_pod_tests() {
   kube::test::get_object_assert rc "{{range.items}}{{$id_field}}:{{end}}" ''
   ## kubectl create --edit can update the label filed of multiple resources. tmp-editor.sh is a fake editor
   TEMP=$(mktemp /tmp/tmp-editor-XXXXXXXX.sh)
-  echo -e "#!/bin/bash\n${SED} -i \"s/mock/modified/g\" \$1" > ${TEMP}
+  echo -e "#!/usr/bin/env bash\n${SED} -i \"s/mock/modified/g\" \$1" > ${TEMP}
   chmod +x ${TEMP}
   # Command
   EDITOR=${TEMP} kubectl create --edit -f hack/testdata/multi-resource-json.json "${kube_flags[@]}"
@@ -804,7 +804,7 @@ __EOF__
   kubectl delete node node-v1-test "${kube_flags[@]}"
 
   ## kubectl edit can update the image field of a POD. tmp-editor.sh is a fake editor
-  echo -e "#!/bin/bash\n${SED} -i \"s/nginx/k8s.gcr.io\/serve_hostname/g\" \$1" > /tmp/tmp-editor.sh
+  echo -e "#!/usr/bin/env bash\n${SED} -i \"s/nginx/k8s.gcr.io\/serve_hostname/g\" \$1" > /tmp/tmp-editor.sh
   chmod +x /tmp/tmp-editor.sh
   # Pre-condition: valid-pod POD has image nginx
   kube::test::get_object_assert pods "{{range.items}}{{$image_field}}:{{end}}" 'nginx:'
@@ -1210,7 +1210,7 @@ run_save_config_tests() {
   ! [[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
   # Command: edit the pod "test-pod"
   temp_editor="${KUBE_TEMP}/tmp-editor.sh"
-  echo -e "#!/bin/bash\n${SED} -i \"s/test-pod-label/test-pod-label-edited/g\" \$@" > "${temp_editor}"
+  echo -e "#!/usr/bin/env bash\n${SED} -i \"s/test-pod-label/test-pod-label-edited/g\" \$@" > "${temp_editor}"
   chmod +x "${temp_editor}"
   EDITOR=${temp_editor} kubectl edit pod test-pod --save-config "${kube_flags[@]}"
   # Post-Condition: pod "test-pod" has configuration annotation
@@ -2093,7 +2093,7 @@ run_recursive_resources_tests() {
   # Pre-condition: busybox0 & busybox1 PODs exist
   kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'busybox0:busybox1:'
   # Command
-  echo -e '#!/bin/bash\nsed -i "s/image: busybox/image: prom\/busybox/g" $1' > /tmp/tmp-editor.sh
+  echo -e '#!/usr/bin/env bash\nsed -i "s/image: busybox/image: prom\/busybox/g" $1' > /tmp/tmp-editor.sh
   chmod +x /tmp/tmp-editor.sh
   output_message=$(! EDITOR=/tmp/tmp-editor.sh kubectl edit -f hack/testdata/recursive/pod --recursive 2>&1 "${kube_flags[@]}")
   # Post-condition: busybox0 & busybox1 PODs are not edited, and since busybox2 is malformed, it should error
@@ -3568,7 +3568,7 @@ run_multi_resources_tests() {
     fi
     # Command: kubectl edit multiple resources
     temp_editor="${KUBE_TEMP}/tmp-editor.sh"
-    echo -e "#!/bin/bash\n${SED} -i \"s/status\:\ replaced/status\:\ edited/g\" \$@" > "${temp_editor}"
+    echo -e "#!/usr/bin/env bash\n${SED} -i \"s/status\:\ replaced/status\:\ edited/g\" \$@" > "${temp_editor}"
     chmod +x "${temp_editor}"
     EDITOR="${temp_editor}" kubectl edit "${kube_flags[@]}" -f "${file}"
     # Post-condition: mock service (and mock2) and mock rc (and mock2) are edited

hack/make-rules/test-cmd.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2014 The Kubernetes Authors.
 #

hack/make-rules/test-e2e-node.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2016 The Kubernetes Authors.
 #

hack/make-rules/test-integration.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2014 The Kubernetes Authors.
 #

hack/make-rules/test-kubeadm-cmd.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2016 The Kubernetes Authors.
 #

hack/make-rules/test.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2014 The Kubernetes Authors.
 #

hack/make-rules/update.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2014 The Kubernetes Authors.
 #

hack/make-rules/verify.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2014 The Kubernetes Authors.
 #

hack/make-rules/vet.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Copyright 2016 The Kubernetes Authors.
 #