diff --git a/.github/workflows/build-image.sh b/.github/workflows/build-image.sh
index f80c63495f..72670f255c 100755
--- a/.github/workflows/build-image.sh
+++ b/.github/workflows/build-image.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 set +e
 if [ "$PUSH" == "" ]; then
diff --git a/build-docs.sh b/build-docs.sh
index 306d9a3594..f7fb1c78a0 100755
--- a/build-docs.sh
+++ b/build-docs.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 pushd "$SCDIR" > /dev/null || exit
diff --git a/create-carvel-package.sh b/create-carvel-package.sh
index d9b91a647e..b7bd5ac230 100755
--- a/create-carvel-package.sh
+++ b/create-carvel-package.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 if [ "$SCDF_TYPE" = "" ]; then
diff --git a/spring-cloud-dataflow-package/set-package-version.sh b/spring-cloud-dataflow-package/set-package-version.sh
index 966f0a0451..f6de77518c 100755
--- a/spring-cloud-dataflow-package/set-package-version.sh
+++ b/spring-cloud-dataflow-package/set-package-version.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 MVNW=$SCDIR/../mvnw
 if [ "$PACKAGE_VERSION" = "" ]; then
diff --git a/spring-cloud-skipper/local/create-container.sh b/spring-cloud-skipper/local/create-container.sh
index 14f30d50a2..cc2e88a03d 100644
--- a/spring-cloud-skipper/local/create-container.sh
+++ b/spring-cloud-skipper/local/create-container.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 ROOT_DIR=$(realpath $SCDIR/..)
diff --git a/spring-cloud-skipper/local/download-app.sh b/spring-cloud-skipper/local/download-app.sh
index 31fc98a2b1..36aae23287 100644
--- a/spring-cloud-skipper/local/download-app.sh
+++ b/spring-cloud-skipper/local/download-app.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 ROOT_DIR=$(realpath $SCDIR/..)
diff --git a/src/deploy/carvel/add-local-registry-secret.sh b/src/deploy/carvel/add-local-registry-secret.sh
index 270ab4a783..84909d7a53 100755
--- a/src/deploy/carvel/add-local-registry-secret.sh
+++ b/src/deploy/carvel/add-local-registry-secret.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 function check_env() {
   eval ev='$'$1
diff --git a/src/deploy/carvel/carvel-add-registry-secret.sh b/src/deploy/carvel/carvel-add-registry-secret.sh
index 9bd96a222a..5a1caa948f 100755
--- a/src/deploy/carvel/carvel-add-registry-secret.sh
+++ b/src/deploy/carvel/carvel-add-registry-secret.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 function check_env() {
   eval ev='$'$1
diff --git a/src/deploy/carvel/carvel-deploy-package.sh b/src/deploy/carvel/carvel-deploy-package.sh
index 76f0605a8c..901561ac12 100755
--- a/src/deploy/carvel/carvel-deploy-package.sh
+++ b/src/deploy/carvel/carvel-deploy-package.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 function check_env() {
   eval ev='$'$1
diff --git a/src/deploy/carvel/carvel-prepare-namespaces.sh b/src/deploy/carvel/carvel-prepare-namespaces.sh
index 66ec8c17b9..087d51e766 100755
--- a/src/deploy/carvel/carvel-prepare-namespaces.sh
+++ b/src/deploy/carvel/carvel-prepare-namespaces.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 function check_env() {
diff --git a/src/deploy/carvel/carvel-use-template.sh b/src/deploy/carvel/carvel-use-template.sh
index 379f4b956e..47488ac46c 100755
--- a/src/deploy/carvel/carvel-use-template.sh
+++ b/src/deploy/carvel/carvel-use-template.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 if [ "$SCDF_TYPE" = "" ]; then
diff --git a/src/deploy/carvel/configure-database.sh b/src/deploy/carvel/configure-database.sh
index 103f922356..5937dc9308 100755
--- a/src/deploy/carvel/configure-database.sh
+++ b/src/deploy/carvel/configure-database.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 if [ "$DEBUG" == "true" ]; then
     echo "DEBUG: configure-database.sh $*"
diff --git a/src/deploy/carvel/delete-scdf.sh b/src/deploy/carvel/delete-scdf.sh
index 4c4761728f..c55fd9542f 100755
--- a/src/deploy/carvel/delete-scdf.sh
+++ b/src/deploy/carvel/delete-scdf.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 function check_env() {
   eval ev='$'$1
diff --git a/src/deploy/carvel/deploy-local-broker.sh b/src/deploy/carvel/deploy-local-broker.sh
index c302e78aaf..c75b320fa7 100755
--- a/src/deploy/carvel/deploy-local-broker.sh
+++ b/src/deploy/carvel/deploy-local-broker.sh
@@ -5,7 +5,10 @@ end="\033[0m"
 function count_kind() {
     jq --arg kind $1 --arg name $2 '.items | .[] | select(.kind == $kind) | .metadata | select(.name == $name) | .name' | grep -c -F "$2"
 }
-
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 if [ "$BROKER" = "" ]; then
     echo "BROKER must be defined"
diff --git a/src/deploy/carvel/deploy-local-database.sh b/src/deploy/carvel/deploy-local-database.sh
index 52edba474a..0887a65036 100755
--- a/src/deploy/carvel/deploy-local-database.sh
+++ b/src/deploy/carvel/deploy-local-database.sh
@@ -2,6 +2,10 @@
 bold="\033[1m"
 dim="\033[2m"
 end="\033[0m"
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 start_time=$(date +%s)
 if [ "$1" = "" ]; then
diff --git a/src/deploy/carvel/deploy-local-prometheus.sh b/src/deploy/carvel/deploy-local-prometheus.sh
index a559ac94d2..7ced670194 100755
--- a/src/deploy/carvel/deploy-local-prometheus.sh
+++ b/src/deploy/carvel/deploy-local-prometheus.sh
@@ -2,6 +2,10 @@
 bold="\033[1m"
 dim="\033[2m"
 end="\033[0m"
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 start_time=$(date +%s)
 K8S=$(realpath $SCDIR/../kubernetes)
diff --git a/src/deploy/carvel/deploy-scdf.sh b/src/deploy/carvel/deploy-scdf.sh
index 3f7d64a657..aa3c8371fc 100755
--- a/src/deploy/carvel/deploy-scdf.sh
+++ b/src/deploy/carvel/deploy-scdf.sh
@@ -19,7 +19,10 @@ fi
 check_env NS
 check_env PACKAGE_VERSION
 check_env SCDF_TYPE
-
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 start_time=$(date +%s)
 # the following names are your choice.
diff --git a/src/deploy/carvel/load-images.sh b/src/deploy/carvel/load-images.sh
index 0a5f02b007..525e0b1090 100755
--- a/src/deploy/carvel/load-images.sh
+++ b/src/deploy/carvel/load-images.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 PROMETHEUS=$(yq ".scdf.feature.monitoring.prometheusRsocketProxy.enabled" ./scdf-values.yml)
 if [ "$PROMETHEUS" == "null" ]; then
diff --git a/src/deploy/carvel/prepare-local-namespace.sh b/src/deploy/carvel/prepare-local-namespace.sh
index 73c213358b..a4795b7553 100755
--- a/src/deploy/carvel/prepare-local-namespace.sh
+++ b/src/deploy/carvel/prepare-local-namespace.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 function check_env() {
diff --git a/src/deploy/carvel/register-apps.sh b/src/deploy/carvel/register-apps.sh
index 7a2e621e25..21026d1849 100755
--- a/src/deploy/carvel/register-apps.sh
+++ b/src/deploy/carvel/register-apps.sh
@@ -2,6 +2,10 @@
 bold="\033[1m"
 dim="\033[2m"
 end="\033[0m"
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 start_time=$(date +%s)
 function register_app() {
diff --git a/src/deploy/carvel/setup-scdf-repo.sh b/src/deploy/carvel/setup-scdf-repo.sh
index f12523614e..75c82eab73 100755
--- a/src/deploy/carvel/setup-scdf-repo.sh
+++ b/src/deploy/carvel/setup-scdf-repo.sh
@@ -13,7 +13,10 @@ function check_env() {
 function count_kind() {
     jq --arg kind $1 --arg name $2 '.items | .[] | select(.kind == $kind) | .metadata | select(.name == $name) | .name' | grep -c -F "$2"
 }
-
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 start_time=$(date +%s)
 # the following names are your choice.
diff --git a/src/deploy/carvel/start-deploy.sh b/src/deploy/carvel/start-deploy.sh
index fc1b411e21..6c864b98b0 100755
--- a/src/deploy/carvel/start-deploy.sh
+++ b/src/deploy/carvel/start-deploy.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 bold="\033[1m"
 dim="\033[2m"
diff --git a/src/deploy/carvel/update-scdf.sh b/src/deploy/carvel/update-scdf.sh
index 16f6c128d1..121bd6796c 100755
--- a/src/deploy/carvel/update-scdf.sh
+++ b/src/deploy/carvel/update-scdf.sh
@@ -2,6 +2,10 @@
 bold="\033[1m"
 dim="\033[2m"
 end="\033[0m"
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 start_time=$(date +%s)
 # the following names are your choice.
diff --git a/src/deploy/images/build-app-images.sh b/src/deploy/images/build-app-images.sh
index 2d89cf6548..52ce63f806 100755
--- a/src/deploy/images/build-app-images.sh
+++ b/src/deploy/images/build-app-images.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 ROOTDIR=$(realpath "$SCDIR/../..")
 set -e
diff --git a/src/deploy/images/build-ctr-image.sh b/src/deploy/images/build-ctr-image.sh
index 1fb8d5a238..a236d744e8 100755
--- a/src/deploy/images/build-ctr-image.sh
+++ b/src/deploy/images/build-ctr-image.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
-./mvnw -o -am -pl :spring-cloud-dataflow-composed-task-runner install -DskipTests -T 0.5C
-./mvnw -o -pl :spring-cloud-dataflow-composed-task-runner spring-boot:build-image -DskipTests
+$SCDIR/mvnw -o -am -pl :spring-cloud-dataflow-composed-task-runner install -DskipTests -T 0.5C
+$SCDIR/mvnw -o -pl :spring-cloud-dataflow-composed-task-runner spring-boot:build-image -DskipTests
diff --git a/src/deploy/images/build-dataflow-image.sh b/src/deploy/images/build-dataflow-image.sh
index ab8d70eb67..bb66c5786d 100755
--- a/src/deploy/images/build-dataflow-image.sh
+++ b/src/deploy/images/build-dataflow-image.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
-./mvnw -o -am -pl :spring-cloud-dataflow-server install -DskipTests -T 0.5C
-./mvnw -o -pl :spring-cloud-dataflow-server spring-boot:build-image -DskipTests
+$SCDIR/mvnw -o -am -pl :spring-cloud-dataflow-server install -DskipTests -T 0.5C
+$SCDIR/mvnw -o -pl :spring-cloud-dataflow-server spring-boot:build-image -DskipTests
diff --git a/src/deploy/images/build-grafana-image.sh b/src/deploy/images/build-grafana-image.sh
index 80fd4474ba..df5fa0c9ff 100755
--- a/src/deploy/images/build-grafana-image.sh
+++ b/src/deploy/images/build-grafana-image.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 PROJECT_DIR=$(realpath $SCDIR/../../..)
 pushd $PROJECT_DIR || exit
diff --git a/src/deploy/images/build-scdf-pro-image.sh b/src/deploy/images/build-scdf-pro-image.sh
index bf689d3dfa..fc81ba94e7 100755
--- a/src/deploy/images/build-scdf-pro-image.sh
+++ b/src/deploy/images/build-scdf-pro-image.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 ROOTDIR=$(realpath $(pwd))
 ./mvnw -o -am -pl :spring-cloud-starter-dataflow-server install -DskipTests
diff --git a/src/deploy/images/build-skipper-image.sh b/src/deploy/images/build-skipper-image.sh
index f6fc1778bd..ca27954e89 100755
--- a/src/deploy/images/build-skipper-image.sh
+++ b/src/deploy/images/build-skipper-image.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 ./mvnw -T 0.5C -o -am -pl :spring-cloud-skipper-server install -DskipTests
 ./mvnw -o -pl :spring-cloud-skipper-server spring-boot:build-image -DskipTests
diff --git a/src/deploy/images/build-skipper-pro-image.sh b/src/deploy/images/build-skipper-pro-image.sh
index ea9aac3d9c..7a1f72035f 100755
--- a/src/deploy/images/build-skipper-pro-image.sh
+++ b/src/deploy/images/build-skipper-pro-image.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 ROOTDIR=$(realpath $(pwd))
 ./mvnw -o -am -pl :spring-cloud-starter-dataflow-server install -DskipTests
diff --git a/src/deploy/images/build-ssb-image.sh b/src/deploy/images/build-ssb-image.sh
index 09c9fbee91..16b329c88b 100755
--- a/src/deploy/images/build-ssb-image.sh
+++ b/src/deploy/images/build-ssb-image.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 ./mvnw -o -am -pl :spring-cloud-dataflow-single-step-batch-job install -DskipTests -T 0.5C
 ./mvnw -o -pl :spring-cloud-dataflow-single-step-batch-job spring-boot:build-image -DskipTests
diff --git a/src/deploy/k8s/configure-k8s.sh b/src/deploy/k8s/configure-k8s.sh
index d59b1b6552..fae81e5004 100755
--- a/src/deploy/k8s/configure-k8s.sh
+++ b/src/deploy/k8s/configure-k8s.sh
@@ -9,6 +9,10 @@ if [ "$NS" = "" ]; then
     exit 2
 fi
 start_time=$(date +%s)
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 set -e
 if [ "$K8S_DRIVER" = "" ]; then
diff --git a/src/deploy/k8s/delete-scdf.sh b/src/deploy/k8s/delete-scdf.sh
index cb5a00e07f..e564d03232 100755
--- a/src/deploy/k8s/delete-scdf.sh
+++ b/src/deploy/k8s/delete-scdf.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 $SCDIR/delete-k8s-ns.sh $NS
 
diff --git a/src/deploy/k8s/deploy-scdf.sh b/src/deploy/k8s/deploy-scdf.sh
index 431dfc20a5..87c8ae2274 100755
--- a/src/deploy/k8s/deploy-scdf.sh
+++ b/src/deploy/k8s/deploy-scdf.sh
@@ -3,6 +3,10 @@ if [ "$NS" = "" ]; then
     echo "NS not defined" >&2
     exit 0
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 K8S=$(realpath $SCDIR/../kubernetes)
 if [ ! -d "$K8S" ]; then
diff --git a/src/deploy/k8s/destroy-k8s.sh b/src/deploy/k8s/destroy-k8s.sh
index d8314bae6f..581dae0c29 100755
--- a/src/deploy/k8s/destroy-k8s.sh
+++ b/src/deploy/k8s/destroy-k8s.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 kubectl_pid=$(ps aux | grep 'kubectl' | grep 'port\-forward' | awk '{print $2}')
 if [ "$kubectl_pid" != "" ]
diff --git a/src/deploy/k8s/export-http-url.sh b/src/deploy/k8s/export-http-url.sh
index b8dceb24cc..b946eadf07 100755
--- a/src/deploy/k8s/export-http-url.sh
+++ b/src/deploy/k8s/export-http-url.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 PARENT=$(realpath "$SCDIR/../../..")
 if [ "$DATAFLOW_IP" = "" ]; then
diff --git a/src/deploy/k8s/forward-scdf.sh b/src/deploy/k8s/forward-scdf.sh
index 7fe18ca9da..1c0d876dd9 100755
--- a/src/deploy/k8s/forward-scdf.sh
+++ b/src/deploy/k8s/forward-scdf.sh
@@ -1,6 +1,9 @@
 #!/bin/bash
 (return 0 2>/dev/null) && sourced=1 || sourced=0
-
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 FWSCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SC_PATH=$(realpath $FWSCDIR)
 set -e
diff --git a/src/deploy/k8s/install-scdf.sh b/src/deploy/k8s/install-scdf.sh
index f18d92b0f3..b9ec7919d5 100755
--- a/src/deploy/k8s/install-scdf.sh
+++ b/src/deploy/k8s/install-scdf.sh
@@ -4,6 +4,10 @@ if [ "$NS" = "" ]; then
   exit 2
 fi
 start_time=$(date +%s)
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 LS_DIR=$(realpath $SCDIR)
 K8S_PATH="$LS_DIR/yaml"
diff --git a/src/deploy/k8s/load-images.sh b/src/deploy/k8s/load-images.sh
index 8e33e16e32..68f91defb1 100755
--- a/src/deploy/k8s/load-images.sh
+++ b/src/deploy/k8s/load-images.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 case $BROKER in
 "" | "kafka")
diff --git a/src/deploy/k8s/register-apps.sh b/src/deploy/k8s/register-apps.sh
index 69302be49c..d8f33a8f70 100755
--- a/src/deploy/k8s/register-apps.sh
+++ b/src/deploy/k8s/register-apps.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 set -e
 function dataflow_post() {
diff --git a/src/deploy/k8s/setup-metallb.sh b/src/deploy/k8s/setup-metallb.sh
index b91b4b1a12..4115349667 100755
--- a/src/deploy/k8s/setup-metallb.sh
+++ b/src/deploy/k8s/setup-metallb.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 echo "Deploying Metal LoadBalancer"
diff --git a/src/deploy/k8s/update-scdf.sh b/src/deploy/k8s/update-scdf.sh
index d5fb4a31db..b368478cf1 100755
--- a/src/deploy/k8s/update-scdf.sh
+++ b/src/deploy/k8s/update-scdf.sh
@@ -3,6 +3,10 @@ if [ "$NS" = "" ]; then
     echo "NS not defined" >&2
     exit 0
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 1
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 PARENT=$(realpath "$SCDIR/../../..")
 if [ "$DATAFLOW_PRO_VERSION" = "" ]; then
diff --git a/src/deploy/k8s/use-gke.sh b/src/deploy/k8s/use-gke.sh
index abf3c95762..069891df54 100755
--- a/src/deploy/k8s/use-gke.sh
+++ b/src/deploy/k8s/use-gke.sh
@@ -1,10 +1,14 @@
 #!/bin/bash
-SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 (return 0 2>/dev/null) && sourced=1 || sourced=0
 if [ "$sourced" = "0" ]; then
   echo "This script must be invoked using: source $0 $*"
   exit 1
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
+SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 function usage() {
     echo "Usage $0 <cluster> [namespace]"
 }
diff --git a/src/deploy/k8s/use-kind.sh b/src/deploy/k8s/use-kind.sh
index 3a3e368069..d68cb1db08 100755
--- a/src/deploy/k8s/use-kind.sh
+++ b/src/deploy/k8s/use-kind.sh
@@ -4,6 +4,10 @@ if [ "$sourced" = "0" ]; then
   echo "This script must be invoked using: source $0 $*"
   exit 1
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 source $SCDIR/use-mk.sh kind $*
diff --git a/src/deploy/k8s/use-microk8s.sh b/src/deploy/k8s/use-microk8s.sh
index 523bf5b021..bdd2d83483 100755
--- a/src/deploy/k8s/use-microk8s.sh
+++ b/src/deploy/k8s/use-microk8s.sh
@@ -5,6 +5,10 @@ if [ "$sourced" = "0" ]; then
   echo "This script must be invoked using: source $0 $*"
   exit 1
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 microk8s status
 mkdir -p $HOME/.kube
 microk8s config > $HOME/.kube/config
diff --git a/src/deploy/k8s/use-mk-docker.sh b/src/deploy/k8s/use-mk-docker.sh
index 989c00e9af..870436686a 100755
--- a/src/deploy/k8s/use-mk-docker.sh
+++ b/src/deploy/k8s/use-mk-docker.sh
@@ -4,6 +4,10 @@ if [ "$sourced" = "0" ]; then
   echo "This script must be invoked using: source $0 $*"
   exit 1
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(readlink -f "${BASH_SOURCE[0]}")
 SCDIR=$(dirname "$SCDIR")
 SCDIR=$(realpath $SCDIR)
diff --git a/src/deploy/k8s/use-mk-kvm2.sh b/src/deploy/k8s/use-mk-kvm2.sh
index bf8bbb2a7b..d7fa139b65 100755
--- a/src/deploy/k8s/use-mk-kvm2.sh
+++ b/src/deploy/k8s/use-mk-kvm2.sh
@@ -4,6 +4,10 @@ if [ "$sourced" = "0" ]; then
   echo "This script must be invoked using: source $0 $*"
   exit 1
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 source $SCDIR/use-mk.sh kvm2 $*
diff --git a/src/deploy/k8s/use-mk.sh b/src/deploy/k8s/use-mk.sh
index 6d71fa234e..86a2ff4bc2 100755
--- a/src/deploy/k8s/use-mk.sh
+++ b/src/deploy/k8s/use-mk.sh
@@ -5,6 +5,10 @@ if [ "$sourced" = "0" ]; then
   echo "This script must be invoked using: source $0 $*"
   exit 1
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 if [ "$1" = "" ]; then
   echo "Arguments <driver> [--namespace <namespace>] [database] [broker] [--pro] [--skip-reg] [--release] [--snapshot] [--milestone]"
   echo "Driver must be one of kind, Or a valid driver for minikube like kvm2, docker, vmware, virtualbox, podman, vmwarefusion, hyperkit"
diff --git a/src/deploy/k8s/use-tmc.sh b/src/deploy/k8s/use-tmc.sh
index ec6f94994b..17015c3022 100755
--- a/src/deploy/k8s/use-tmc.sh
+++ b/src/deploy/k8s/use-tmc.sh
@@ -5,6 +5,10 @@ if [ "$sourced" = "0" ]; then
   echo "This script must be invoked using: source $0 $*"
   exit 1
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 export K8S_DRIVER=tmc
 if [ "$1" = "" ]; then
   echo "Expected parameter providing TMC cluster"
diff --git a/src/deploy/shell/build-shell.sh b/src/deploy/shell/build-shell.sh
index 18b0327858..0324f4af04 100755
--- a/src/deploy/shell/build-shell.sh
+++ b/src/deploy/shell/build-shell.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 ./mvnw -o -am -pl :spring-cloud-dataflow-shell install -DskipTests -T 0.5C
 DATAFLOW_VERSION=$(./mvnw exec:exec -Dexec.executable='echo' -Dexec.args='${project.version}' --non-recursive -q | sed 's/\"//g' | sed 's/version=//g')
diff --git a/src/deploy/shell/deploy-ctr.sh b/src/deploy/shell/deploy-ctr.sh
index 46bee2d3e7..525ad4eeb3 100755
--- a/src/deploy/shell/deploy-ctr.sh
+++ b/src/deploy/shell/deploy-ctr.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > $SCDIR/deploy-ctr.shell <<EOF
diff --git a/src/deploy/shell/deploy-ctr3a.sh b/src/deploy/shell/deploy-ctr3a.sh
index 99fd4935c4..7fd0a2e240 100755
--- a/src/deploy/shell/deploy-ctr3a.sh
+++ b/src/deploy/shell/deploy-ctr3a.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > $SCDIR/deploy-ctr3a.shell <<EOF
diff --git a/src/deploy/shell/deploy-ctr3b.sh b/src/deploy/shell/deploy-ctr3b.sh
index 043866686b..3acaa84ebe 100755
--- a/src/deploy/shell/deploy-ctr3b.sh
+++ b/src/deploy/shell/deploy-ctr3b.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > $SCDIR/deploy-ctr3b.shell <<EOF
diff --git a/src/deploy/shell/deploy-task-demo-metrics-prometheus.sh b/src/deploy/shell/deploy-task-demo-metrics-prometheus.sh
index be71b27e36..9a07100ac4 100755
--- a/src/deploy/shell/deploy-task-demo-metrics-prometheus.sh
+++ b/src/deploy/shell/deploy-task-demo-metrics-prometheus.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > $SCDIR/deploy-task-demo-metrics-prometheus.shell <<EOF
diff --git a/src/deploy/shell/deploy-timelogger.sh b/src/deploy/shell/deploy-timelogger.sh
index d92fd17c37..bd3b11c715 100755
--- a/src/deploy/shell/deploy-timelogger.sh
+++ b/src/deploy/shell/deploy-timelogger.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > deploy-timelogger.shell <<EOF
diff --git a/src/deploy/shell/deploy-timestamp-batch.sh b/src/deploy/shell/deploy-timestamp-batch.sh
index 3a7532e906..efb2d866f5 100755
--- a/src/deploy/shell/deploy-timestamp-batch.sh
+++ b/src/deploy/shell/deploy-timestamp-batch.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > deploy-ts-batch.shell <<EOF
diff --git a/src/deploy/shell/deploy-timestamp-batch3.sh b/src/deploy/shell/deploy-timestamp-batch3.sh
index 3775bbf42a..91fbb3522c 100755
--- a/src/deploy/shell/deploy-timestamp-batch3.sh
+++ b/src/deploy/shell/deploy-timestamp-batch3.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > deploy-ts-batch3.shell <<EOF
diff --git a/src/deploy/shell/deploy-timestamp.sh b/src/deploy/shell/deploy-timestamp.sh
index 7671252c05..26123468e3 100755
--- a/src/deploy/shell/deploy-timestamp.sh
+++ b/src/deploy/shell/deploy-timestamp.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > deploy-ts-task.shell <<EOF
diff --git a/src/deploy/shell/deploy-timestamp3.sh b/src/deploy/shell/deploy-timestamp3.sh
index d920a22e82..5137add5c3 100755
--- a/src/deploy/shell/deploy-timestamp3.sh
+++ b/src/deploy/shell/deploy-timestamp3.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > deploy-ts-task3.shell <<EOF
diff --git a/src/deploy/shell/register-apps.sh b/src/deploy/shell/register-apps.sh
index 7c4946fcc9..339a2188ec 100644
--- a/src/deploy/shell/register-apps.sh
+++ b/src/deploy/shell/register-apps.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > $SCDIR/register-apps.shell <<EOF
diff --git a/src/deploy/shell/run-ctr.sh b/src/deploy/shell/run-ctr.sh
index 5dfe0cd08c..8dc31d89d0 100755
--- a/src/deploy/shell/run-ctr.sh
+++ b/src/deploy/shell/run-ctr.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > run-ctr.shell <<EOF
diff --git a/src/deploy/shell/run-ctr3a.sh b/src/deploy/shell/run-ctr3a.sh
index 91cc1c794c..e09c0178a1 100755
--- a/src/deploy/shell/run-ctr3a.sh
+++ b/src/deploy/shell/run-ctr3a.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > run-ctr3a.shell <<EOF
diff --git a/src/deploy/shell/run-ctr3b.sh b/src/deploy/shell/run-ctr3b.sh
index 58e932e76d..e8d6dab8a3 100755
--- a/src/deploy/shell/run-ctr3b.sh
+++ b/src/deploy/shell/run-ctr3b.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > run-ctr3b.shell <<EOF
diff --git a/src/deploy/shell/run-task-demo-metrics-prometheus.sh b/src/deploy/shell/run-task-demo-metrics-prometheus.sh
index a5adc1d411..61ca5191fa 100755
--- a/src/deploy/shell/run-task-demo-metrics-prometheus.sh
+++ b/src/deploy/shell/run-task-demo-metrics-prometheus.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > run-task-demo-metrics-prometheus.shell <<EOF
diff --git a/src/deploy/shell/run-timelogger.sh b/src/deploy/shell/run-timelogger.sh
index dbfaa169ad..ba3ded9413 100755
--- a/src/deploy/shell/run-timelogger.sh
+++ b/src/deploy/shell/run-timelogger.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > run-timelogger.shell <<EOF
diff --git a/src/deploy/shell/run-timestamp-batch.sh b/src/deploy/shell/run-timestamp-batch.sh
index 7849b8d7fd..b753abb15d 100755
--- a/src/deploy/shell/run-timestamp-batch.sh
+++ b/src/deploy/shell/run-timestamp-batch.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > run-ts-batch.shell <<EOF
diff --git a/src/deploy/shell/run-timestamp-batch3.sh b/src/deploy/shell/run-timestamp-batch3.sh
index ed4cd24320..e685fffa16 100755
--- a/src/deploy/shell/run-timestamp-batch3.sh
+++ b/src/deploy/shell/run-timestamp-batch3.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > run-ts-batch3.shell <<EOF
diff --git a/src/deploy/shell/run-timestamp.sh b/src/deploy/shell/run-timestamp.sh
index dcfeecf299..5399f17e2b 100755
--- a/src/deploy/shell/run-timestamp.sh
+++ b/src/deploy/shell/run-timestamp.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > run-ts-task.shell <<EOF
diff --git a/src/deploy/shell/run-timestamp3.sh b/src/deploy/shell/run-timestamp3.sh
index 5c34fd1963..829d993fc1 100755
--- a/src/deploy/shell/run-timestamp3.sh
+++ b/src/deploy/shell/run-timestamp3.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 cat > run-ts-task3.shell <<EOF
diff --git a/src/deploy/shell/shell.sh b/src/deploy/shell/shell.sh
index 24a4a53cf6..82cb1355f1 100755
--- a/src/deploy/shell/shell.sh
+++ b/src/deploy/shell/shell.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 
 if [ "$DATAFLOW_VERSION" = "" ]; then
diff --git a/src/docker-compose/dc.sh b/src/docker-compose/dc.sh
index 196ace6518..20778c35bb 100755
--- a/src/docker-compose/dc.sh
+++ b/src/docker-compose/dc.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 if [ "$1" == "" ]; then
diff --git a/src/local/create-containers.sh b/src/local/create-containers.sh
index b872b7b1c1..5276cd26e5 100755
--- a/src/local/create-containers.sh
+++ b/src/local/create-containers.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 ROOT_DIR=$(realpath $SCDIR/../..)
diff --git a/src/local/download-apps.sh b/src/local/download-apps.sh
index adccd57378..01cb2ad491 100755
--- a/src/local/download-apps.sh
+++ b/src/local/download-apps.sh
@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 ROOT_DIR=$(realpath $SCDIR/../..)
diff --git a/src/local/launch-dataflow.sh b/src/local/launch-dataflow.sh
index b7e27ee64f..174a510fcf 100755
--- a/src/local/launch-dataflow.sh
+++ b/src/local/launch-dataflow.sh
@@ -8,7 +8,10 @@ function usage_msg() {
     echo "  --no-dataflow: Don't start Data Flow"
     echo "  --pro: Launches SCDF Pro instead of OSS"
 }
-
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)
 PROJECT_DIR=$(realpath "$SCDIR/../..")
diff --git a/src/local/local-k8s-acceptance-tests.sh b/src/local/local-k8s-acceptance-tests.sh
index c7e25aa3c3..c131bac987 100755
--- a/src/local/local-k8s-acceptance-tests.sh
+++ b/src/local/local-k8s-acceptance-tests.sh
@@ -8,6 +8,10 @@ if [ "$1" = "-h" ]; then
   echo "    otherwise the profile will be test-all with -Dtest and the parameter"
   exit 0
 fi
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(realpath $(dirname "$(readlink -f "${BASH_SOURCE[0]}")"))
 ROOTDIR=$(realpath $SCDIR/../..)
 
diff --git a/src/local/register-apps.sh b/src/local/register-apps.sh
index af973d314a..68bfa01b58 100755
--- a/src/local/register-apps.sh
+++ b/src/local/register-apps.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 set -e
 function dataflow_post() {
diff --git a/src/local/stop-dataflow.sh b/src/local/stop-dataflow.sh
index 14521c0eb7..7b8e61edaf 100755
--- a/src/local/stop-dataflow.sh
+++ b/src/local/stop-dataflow.sh
@@ -1,5 +1,8 @@
 #!/usr/bin/env bash
-
+if [ -z "$BASH_VERSION" ]; then
+    echo "This script requires Bash. Use: bash $0 $*"
+    exit 0
+fi
 SCDIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
 SCDIR=$(realpath $SCDIR)