From 4db21c6ec26bdfada6643fae5b791b0d507d369b Mon Sep 17 00:00:00 2001
From: Steffen Vogel <post@steffenvogel.de>
Date: Thu, 29 Feb 2024 20:03:12 +0100
Subject: [PATCH] Fix shebangs of bash scripts to work under NixOS

Signed-off-by: Steffen Vogel <post@steffenvogel.de>
---
 packaging/deps.sh                             |  5 ++-
 packaging/live-iso/ensure_loop.sh             |  3 +-
 tests/benchmarks/run-benchmark.sh             | 44 +++++++++----------
 tests/integration/api-capabilities.sh         |  2 +-
 tests/integration/api-config.sh               |  2 +-
 tests/integration/api-nodes.sh                |  2 +-
 tests/integration/api-paths.sh                |  2 +-
 tests/integration/api-restart.sh              |  4 +-
 tests/integration/api-shutdown.sh             |  4 +-
 tests/integration/api-stress.sh               |  8 ++--
 tests/integration/compare.sh                  |  2 +-
 tests/integration/convert.sh                  |  2 +-
 tests/integration/hook-average.sh             |  2 +-
 tests/integration/hook-cast.sh                |  2 +-
 tests/integration/hook-decimate.sh            |  2 +-
 tests/integration/hook-digest.sh              |  2 +-
 tests/integration/hook-drop.sh                |  2 +-
 tests/integration/hook-frame.sh               |  2 +-
 tests/integration/hook-gate.sh                |  2 +-
 tests/integration/hook-limit_rate.sh          |  2 +-
 tests/integration/hook-lua.sh                 |  2 +-
 tests/integration/hook-lua_script.sh          |  2 +-
 tests/integration/hook-print.sh               |  2 +-
 tests/integration/hook-reorder_ts.sh          |  2 +-
 tests/integration/hook-scale.sh               |  2 +-
 tests/integration/hook-shift_seq.sh           |  2 +-
 tests/integration/hook-shift_ts.sh            |  2 +-
 tests/integration/hook-skip_first.sh          |  2 +-
 tests/integration/hook-skip_first2.sh         |  2 +-
 tests/integration/missing-example-configs.sh  |  2 +-
 tests/integration/node-can.sh                 |  4 +-
 tests/integration/node-example.sh             |  2 +-
 tests/integration/node-hook.sh                |  6 +--
 tests/integration/node-infiniband.sh          | 28 ++++++------
 tests/integration/node-loopback-socket.sh     |  4 +-
 tests/integration/node-mapping.sh             |  2 +-
 .../integration/node-multiple-destinations.sh |  2 +-
 tests/integration/node-multiple-sources.sh    |  2 +-
 tests/integration/node-multiplexing.sh        |  2 +-
 tests/integration/node-rate.sh                |  2 +-
 tests/integration/node-stats.sh               |  2 +-
 tests/integration/node-test_rtt.sh            |  2 +-
 tests/integration/pipe-loopback-amqp.sh       |  2 +-
 tests/integration/pipe-loopback-exec.sh       |  4 +-
 tests/integration/pipe-loopback-file.sh       |  2 +-
 .../integration/pipe-loopback-iec61850-9-2.sh |  6 +--
 tests/integration/pipe-loopback-loopback.sh   |  2 +-
 tests/integration/pipe-loopback-mqtt.sh       |  6 +--
 tests/integration/pipe-loopback-nanomsg.sh    |  6 +--
 tests/integration/pipe-loopback-redis.sh      |  4 +-
 tests/integration/pipe-loopback-rtp-dual.sh   |  2 +-
 tests/integration/pipe-loopback-rtp-remote.sh |  2 +-
 tests/integration/pipe-loopback-rtp-tbf.sh    |  2 +-
 tests/integration/pipe-loopback-rtp.sh        |  2 +-
 tests/integration/pipe-loopback-shmem.sh      |  2 +-
 .../pipe-loopback-socket-multicast.sh         |  4 +-
 .../integration/pipe-loopback-socket-netem.sh |  2 +-
 tests/integration/pipe-loopback-socket.sh     |  6 +--
 tests/integration/pipe-loopback-websocket.sh  |  2 +-
 tests/integration/pipe-loopback-zeromq.sh     |  4 +-
 tests/integration/pipe-python-protobuf.sh     |  2 +-
 tests/integration/relay.sh                    |  2 +-
 tests/integration/signal.sh                   |  2 +-
 tests/integration/test-config.sh              |  2 +-
 tools/docker-dev.sh                           |  2 +-
 tools/fpga-cat.sh                             |  4 +-
 tools/fpga-non-root.sh                        |  2 +-
 tools/fpga-xbar-select.sh                     |  4 +-
 tools/gdb-sudo.sh                             |  2 +-
 tools/pci-rebind-device.sh                    |  2 +-
 tools/pci-reset-device.sh                     |  2 +-
 tools/start-fpga.sh                           |  2 +-
 tools/tc-dump.sh                              |  2 +-
 tools/tc-netem.sh                             |  2 +-
 tools/tc-netem2.sh                            |  2 +-
 tools/tune-realtime.sh                        |  2 +-
 tools/villas                                  |  2 +-
 tools/villas-api.sh                           |  2 +-
 tools/villas-helper.sh                        |  8 ++--
 79 files changed, 143 insertions(+), 139 deletions(-)

diff --git a/packaging/deps.sh b/packaging/deps.sh
index 130c96381..2b12b9231 100644
--- a/packaging/deps.sh
+++ b/packaging/deps.sh
@@ -1,4 +1,7 @@
-#!/bin/bash
+#!/usr/bin/env bash
+#
+# A shell script to install various dependencies required by VILLASnode
+#
 # SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 # SPDX-License-Identifier: Apache-2.0
 
diff --git a/packaging/live-iso/ensure_loop.sh b/packaging/live-iso/ensure_loop.sh
index c0ade25a4..b292d58ba 100755
--- a/packaging/live-iso/ensure_loop.sh
+++ b/packaging/live-iso/ensure_loop.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+#
 # Ensure that we have at least two usable loop devices inside our Docker container
 #
 # Source: https://github.com/jpetazzo/dind/issues/19#issuecomment-48859883
diff --git a/tests/benchmarks/run-benchmark.sh b/tests/benchmarks/run-benchmark.sh
index 804be8337..84f74ea13 100755
--- a/tests/benchmarks/run-benchmark.sh
+++ b/tests/benchmarks/run-benchmark.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration Infiniband test using villas-node.
 #
@@ -90,7 +90,7 @@ for NODETYPE in "${NODETYPES[@]}"
 do
 
 	# CREATE PATH CONFIG FILES
-	
+
 	# Set target and source config file, which is the same for both runs
 cat > ${CONFIG_SOURCE} <<EOF
 @include "${CONFIG//\/tmp\/}"
@@ -116,13 +116,13 @@ paths = (
 )
 EOF
 	# SPECIAL TREATMENT FOR SOME NODES
-	
+
 	# Some nodes require special treatment:
 	#   * loopback node: target_node is identical to source_node
 	#   * infiniband node: one node must be executed in a namespace
-	
+
 	# loopback
-	if [ "${NODETYPE}" == "loopback" ]; then 
+	if [ "${NODETYPE}" == "loopback" ]; then
 cat > ${CONFIG_TARGET} <<EOF
 @include "${CONFIG//\/tmp\/}"
 
@@ -140,9 +140,9 @@ paths = (
 )
 EOF
 	fi
-	
+
 	# infiniband
-	if [ "${NODETYPE}" == "infiniband" ]; then 
+	if [ "${NODETYPE}" == "infiniband" ]; then
 		NAMESPACE_CMD='ip netns exec namespace0'
 	else
 		NAMESPACE_CMD=''
@@ -153,20 +153,20 @@ EOF
 	for IB_MODE in "${IB_MODES[@]}"
 	do
 		LOG_DIR=$(date +%Y%m%d_%H-%M-%S)_benchmark_${NODETYPE}_${IB_MODE}
-	
+
 		for NUM_VALUE in "${NUM_VALUES[@]}"
 		do
 			for RATE_SAMPLE in "${RATE_SAMPLES[@]}"
 			do
 				NUM_SAMPLE=$((${RATE_SAMPLE} * ${TIME_TO_RUN}))
 				#TIME_TO_RUN=$((${NUM_SAMPLE} / ${RATE_SAMPLE}))
-	
+
 				echo "#####"
 				echo "## START ${IB_MODE}"
 				echo "## NUM_VALUES: ${NUM_VALUE}"
 				echo "## RATE_SAMPLES: ${RATE_SAMPLE}"
 				echo "## NUM_SAMPLES: ${NUM_SAMPLE}"
-	
+
 				# Set wrapper of config file
 cat > ${CONFIG} <<EOF
 logging = {
@@ -210,7 +210,7 @@ nodes = {
 	},
 EOF
 
-				cat configs/${NODETYPE}.conf | sed -e "s/\${NUM_VALUE}/${NUM_VALUE}/" -e "s/\${IB_MODE}/${IB_MODE}/" >> ${CONFIG} 
+				cat configs/${NODETYPE}.conf | sed -e "s/\${NUM_VALUE}/${NUM_VALUE}/" -e "s/\${IB_MODE}/${IB_MODE}/" >> ${CONFIG}
 
 cat >> ${CONFIG} <<EOF
 }
@@ -220,39 +220,39 @@ EOF
 				VILLAS_LOG_PREFIX=$(colorize "[target] ") \
 				cset proc --set=real-time-0 --exec ../../build/src/villas-node -- ${CONFIG_TARGET} &
 				target_node_proc=$!
-					
+
 				# Wait for node to complete init
 				sleep 2
-				
-				if [ ! "${NODETYPE}" == "loopback" ]; then 
+
+				if [ ! "${NODETYPE}" == "loopback" ]; then
 					# Start sending pipe
 					VILLAS_LOG_PREFIX=$(colorize "[source] ") \
 					${NAMESPACE_CMD} cset proc --set=real-time-1 --exec ../../build/src/villas-node -- ${CONFIG_SOURCE} &
 					source_node_proc=$!
 				fi
-					
+
 				sleep $((${TIME_TO_RUN} + 5))
-				
+
 				# Stop node
 				kill $target_node_proc
-				
+
 				sleep 1
-	
+
 				echo "## STOP ${IB_MODE}-${NUM_VALUE}-${RATE_SAMPLE}-${NUM_SAMPLE}"
 				echo ""
-	
+
 				((COUNT++))
-	
+
 				sleep 1
 			done
 		done
-	
+
 		# Since this script will be executed as sudo we should chmod the
 		# log dir 777. Otherwise too many unnecessary 'sudo rm -rf' will be invoked.
 		chmod -R 777 ${LOG_DIR}
 	done
 done
 
-rm ${CONFIG} ${CONFIG_TARGET} ${CONFIG_SOURCE} 
+rm ${CONFIG} ${CONFIG_TARGET} ${CONFIG_SOURCE}
 
 exit 0
diff --git a/tests/integration/api-capabilities.sh b/tests/integration/api-capabilities.sh
index 9085405bb..621bb2f08 100755
--- a/tests/integration/api-capabilities.sh
+++ b/tests/integration/api-capabilities.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for remote API
 #
diff --git a/tests/integration/api-config.sh b/tests/integration/api-config.sh
index b66272bd8..d24330bc5 100755
--- a/tests/integration/api-config.sh
+++ b/tests/integration/api-config.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for remote API
 #
diff --git a/tests/integration/api-nodes.sh b/tests/integration/api-nodes.sh
index 774cccb4c..1a2740b6b 100755
--- a/tests/integration/api-nodes.sh
+++ b/tests/integration/api-nodes.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for remote API
 #
diff --git a/tests/integration/api-paths.sh b/tests/integration/api-paths.sh
index 8a6c136f7..4b5e52138 100755
--- a/tests/integration/api-paths.sh
+++ b/tests/integration/api-paths.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for remote API
 #
diff --git a/tests/integration/api-restart.sh b/tests/integration/api-restart.sh
index 53ff10f6e..fdc384f78 100755
--- a/tests/integration/api-restart.sh
+++ b/tests/integration/api-restart.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for remote API
 #
@@ -35,7 +35,7 @@ cat > local.json <<EOF
 		"node1": {
 			"type"   : "socket",
 			"format": "csv",
-			
+
 			"in": {
 				"address"  : "*:12000"
 			},
diff --git a/tests/integration/api-shutdown.sh b/tests/integration/api-shutdown.sh
index eabc57f94..72015f98c 100755
--- a/tests/integration/api-shutdown.sh
+++ b/tests/integration/api-shutdown.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for remote API
 #
@@ -28,7 +28,7 @@ EOF
 
 # Start without a configuration
 timeout -s SIGKILL 3 \
-villas node config.json & 
+villas node config.json &
 
 # Wait for node to complete init
 sleep 1
diff --git a/tests/integration/api-stress.sh b/tests/integration/api-stress.sh
index 31a56c4d5..c60e0f67f 100755
--- a/tests/integration/api-stress.sh
+++ b/tests/integration/api-stress.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Stress test for remote API
 #
@@ -46,11 +46,11 @@ for J in $(seq 1 ${RUNS}); do
 		trap "echo error-trap >> ${FIFO}" ERR
 
 		FETCHED_CONF=$(mktemp -p ${DIR})
-		
+
 		curl -s http://localhost:8080/api/v2/config > ${FETCHED_CONF}
 		diff -u <(jq -S . < ${FETCHED_CONF}) <(jq -S . < ${LOCAL_CONF})
 		RC=$?
-		
+
 		if [ "$RC" -eq "0" ]; then
 			echo success >&5
 		else
@@ -69,7 +69,7 @@ wait %1
 echo "Check return codes"
 for J in $(seq 1 ${RUNS}); do
 	read -t 10 -u 5 STATUS
-	
+
 	if [ "${STATUS}" == "success" ]; then
 		let ++SUCCESS
 	else
diff --git a/tests/integration/compare.sh b/tests/integration/compare.sh
index 2ecd4a42a..c68f27f32 100755
--- a/tests/integration/compare.sh
+++ b/tests/integration/compare.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for villas compare.
 #
diff --git a/tests/integration/convert.sh b/tests/integration/convert.sh
index d2f50bfb8..c047c6303 100755
--- a/tests/integration/convert.sh
+++ b/tests/integration/convert.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for villas convert tool
 #
diff --git a/tests/integration/hook-average.sh b/tests/integration/hook-average.sh
index f66011d9f..e5fe2021d 100755
--- a/tests/integration/hook-average.sh
+++ b/tests/integration/hook-average.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for average hook.
 #
diff --git a/tests/integration/hook-cast.sh b/tests/integration/hook-cast.sh
index 35868089e..5c22a4697 100755
--- a/tests/integration/hook-cast.sh
+++ b/tests/integration/hook-cast.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for cast hook.
 #
diff --git a/tests/integration/hook-decimate.sh b/tests/integration/hook-decimate.sh
index 58f31decd..2eb995991 100755
--- a/tests/integration/hook-decimate.sh
+++ b/tests/integration/hook-decimate.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for decimate hook.
 #
diff --git a/tests/integration/hook-digest.sh b/tests/integration/hook-digest.sh
index a2bed93cd..13bcbaf9a 100755
--- a/tests/integration/hook-digest.sh
+++ b/tests/integration/hook-digest.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for digest hook.
 #
diff --git a/tests/integration/hook-drop.sh b/tests/integration/hook-drop.sh
index 1d4127f73..7d5a5e7c9 100755
--- a/tests/integration/hook-drop.sh
+++ b/tests/integration/hook-drop.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for drop hook.
 #
diff --git a/tests/integration/hook-frame.sh b/tests/integration/hook-frame.sh
index dce8d18ee..a852c72c2 100755
--- a/tests/integration/hook-frame.sh
+++ b/tests/integration/hook-frame.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for frame hook.
 #
diff --git a/tests/integration/hook-gate.sh b/tests/integration/hook-gate.sh
index 2e32de58c..c68828d28 100755
--- a/tests/integration/hook-gate.sh
+++ b/tests/integration/hook-gate.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for gate hook.
 #
diff --git a/tests/integration/hook-limit_rate.sh b/tests/integration/hook-limit_rate.sh
index f546ebc45..471677ca6 100755
--- a/tests/integration/hook-limit_rate.sh
+++ b/tests/integration/hook-limit_rate.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for limit_rate hook.
 #
diff --git a/tests/integration/hook-lua.sh b/tests/integration/hook-lua.sh
index d7c204b9f..d17907261 100755
--- a/tests/integration/hook-lua.sh
+++ b/tests/integration/hook-lua.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for scale hook.
 #
diff --git a/tests/integration/hook-lua_script.sh b/tests/integration/hook-lua_script.sh
index 6c4fd832c..5f7e45d99 100755
--- a/tests/integration/hook-lua_script.sh
+++ b/tests/integration/hook-lua_script.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for scale hook.
 #
diff --git a/tests/integration/hook-print.sh b/tests/integration/hook-print.sh
index 11538f09f..983bac8a6 100755
--- a/tests/integration/hook-print.sh
+++ b/tests/integration/hook-print.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for print hook.
 #
diff --git a/tests/integration/hook-reorder_ts.sh b/tests/integration/hook-reorder_ts.sh
index a62a5da30..bc11002ea 100755
--- a/tests/integration/hook-reorder_ts.sh
+++ b/tests/integration/hook-reorder_ts.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for reorder_ts hook.
 #
diff --git a/tests/integration/hook-scale.sh b/tests/integration/hook-scale.sh
index 0b72f21b3..be9b78c23 100755
--- a/tests/integration/hook-scale.sh
+++ b/tests/integration/hook-scale.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for scale hook.
 #
diff --git a/tests/integration/hook-shift_seq.sh b/tests/integration/hook-shift_seq.sh
index 01264daf6..e51a358c7 100755
--- a/tests/integration/hook-shift_seq.sh
+++ b/tests/integration/hook-shift_seq.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for shift_seq hook.
 #
diff --git a/tests/integration/hook-shift_ts.sh b/tests/integration/hook-shift_ts.sh
index a195cc12f..f4a9dad99 100755
--- a/tests/integration/hook-shift_ts.sh
+++ b/tests/integration/hook-shift_ts.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for shift_ts hook.
 #
diff --git a/tests/integration/hook-skip_first.sh b/tests/integration/hook-skip_first.sh
index 0797a8630..7665e980b 100755
--- a/tests/integration/hook-skip_first.sh
+++ b/tests/integration/hook-skip_first.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for skip_first hook.
 #
diff --git a/tests/integration/hook-skip_first2.sh b/tests/integration/hook-skip_first2.sh
index e36d29a8b..58a639d07 100755
--- a/tests/integration/hook-skip_first2.sh
+++ b/tests/integration/hook-skip_first2.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for skip_first hook.
 #
diff --git a/tests/integration/missing-example-configs.sh b/tests/integration/missing-example-configs.sh
index b4c62826f..dc3076e9f 100755
--- a/tests/integration/missing-example-configs.sh
+++ b/tests/integration/missing-example-configs.sh
@@ -1,5 +1,5 @@
 
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Test example configurations
 #
diff --git a/tests/integration/node-can.sh b/tests/integration/node-can.sh
index 615dadb4f..e32cf9ebb 100755
--- a/tests/integration/node-can.sh
+++ b/tests/integration/node-can.sh
@@ -1,11 +1,11 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration can test using villas node.
 #
 # Author: Niklas Eiling <niklas.eiling@eonerc.rwth-aachen.de>
 # SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 # SPDX-License-Identifier: Apache-2.0
-# To set up vcan interface use the following commands 
+# To set up vcan interface use the following commands
 # sudo modprobe vcan
 # sudo ip link add dev vcan0 type vcan
 # sudo ip link set vcan0 up
diff --git a/tests/integration/node-example.sh b/tests/integration/node-example.sh
index c66158ff1..af263fd4f 100755
--- a/tests/integration/node-example.sh
+++ b/tests/integration/node-example.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Test for the example node-type
 #
diff --git a/tests/integration/node-hook.sh b/tests/integration/node-hook.sh
index fabefa518..83b0e0f74 100755
--- a/tests/integration/node-hook.sh
+++ b/tests/integration/node-hook.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Test hooks in villas node
 #
@@ -49,13 +49,13 @@ cat > config.json <<EOF
 			"hooks": [
 				{
 					"type": "average",
-					
+
 					"signals": [ "random", "sine", "square", "triangle", "ramp" ],
 					"offset": 0
 				},
 				{
 					"type": "skip_first",
-					
+
 					"samples": 5
 				},
 				{
diff --git a/tests/integration/node-infiniband.sh b/tests/integration/node-infiniband.sh
index 8e868db32..7933c31b2 100755
--- a/tests/integration/node-infiniband.sh
+++ b/tests/integration/node-infiniband.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration Infiniband test using villas node.
 #
@@ -111,43 +111,43 @@ for MODE in "${MODES[@]}"; do
 
 	echo "## Start ${MODE}"
 
-	sed -i -e 's/MODE/'${MODE}'/g' config.json 
+	sed -i -e 's/MODE/'${MODE}'/g' config.json
 
 	# Start receiving node
 	villas node target.json &
 	PID_PROC=$!
-	
+
 	# Wait for node to complete init
 	sleep 1
-	
+
 	# Preprare fifo
 	FIFO=$(mktemp -p ${DIR} -t)
 	if [[ ! -p ${FIFO} ]]; then
 		mkfifo ${FIFO}
 	fi
-	
+
 	# Start sending pipe
 	ip netns exec namespace0 \
-    villas pipe -l ${NUM_SAMPLES} config.json ib_node_source >output.dat <${FIFO} & 
+    villas pipe -l ${NUM_SAMPLES} config.json ib_node_source >output.dat <${FIFO} &
 	PID_PIPE=$!
-	
+
 	# Keep pipe alive
 	sleep 5 >${FIFO} &
-	
+
 	# Wait for pipe to connect to node
 	sleep 3
-	
+
 	# Write data to pipe
 	cat input.dat >${FIFO} &
-	
+
 	# Wait for node to handle samples
 	sleep 2
-	
+
 	# Stop node
-	kill ${PID_PIPE} 
+	kill ${PID_PIPE}
 	kill ${PID_PROC}
-	
+
 	villas compare input.dat output.dat
 
-	sed -i -e 's/'${MODE}'/MODE/g' config.json 
+	sed -i -e 's/'${MODE}'/MODE/g' config.json
 done
diff --git a/tests/integration/node-loopback-socket.sh b/tests/integration/node-loopback-socket.sh
index 488f74903..b482d1673 100755
--- a/tests/integration/node-loopback-socket.sh
+++ b/tests/integration/node-loopback-socket.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test using villas node.
 #
@@ -14,7 +14,7 @@ pushd ${DIR}
 function finish {
 	popd
 	rm -rf ${DIR}
-	
+
 	kill -SIGTERM 0 # kill all decendants
 }
 trap finish EXIT
diff --git a/tests/integration/node-mapping.sh b/tests/integration/node-mapping.sh
index f73261087..171522e2c 100755
--- a/tests/integration/node-mapping.sh
+++ b/tests/integration/node-mapping.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test using villas node.
 #
diff --git a/tests/integration/node-multiple-destinations.sh b/tests/integration/node-multiple-destinations.sh
index e53716b41..34d981a0f 100755
--- a/tests/integration/node-multiple-destinations.sh
+++ b/tests/integration/node-multiple-destinations.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test using villas node.
 #
diff --git a/tests/integration/node-multiple-sources.sh b/tests/integration/node-multiple-sources.sh
index d25f7cf32..401637056 100755
--- a/tests/integration/node-multiple-sources.sh
+++ b/tests/integration/node-multiple-sources.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test using villas node.
 #
diff --git a/tests/integration/node-multiplexing.sh b/tests/integration/node-multiplexing.sh
index fe1f0eb33..708c14f12 100755
--- a/tests/integration/node-multiplexing.sh
+++ b/tests/integration/node-multiplexing.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test using villas node.
 #
diff --git a/tests/integration/node-rate.sh b/tests/integration/node-rate.sh
index ced0c4700..63d8a5a12 100755
--- a/tests/integration/node-rate.sh
+++ b/tests/integration/node-rate.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test using villas node.
 #
diff --git a/tests/integration/node-stats.sh b/tests/integration/node-stats.sh
index b26bb3f3a..9ce13952b 100755
--- a/tests/integration/node-stats.sh
+++ b/tests/integration/node-stats.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test using villas node.
 #
diff --git a/tests/integration/node-test_rtt.sh b/tests/integration/node-test_rtt.sh
index 8231fd59c..04126782e 100755
--- a/tests/integration/node-test_rtt.sh
+++ b/tests/integration/node-test_rtt.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test using villas node.
 #
diff --git a/tests/integration/pipe-loopback-amqp.sh b/tests/integration/pipe-loopback-amqp.sh
index 3cb60ec2e..a5b805054 100755
--- a/tests/integration/pipe-loopback-amqp.sh
+++ b/tests/integration/pipe-loopback-amqp.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-exec.sh b/tests/integration/pipe-loopback-exec.sh
index 6135a0ae5..19adc58c0 100755
--- a/tests/integration/pipe-loopback-exec.sh
+++ b/tests/integration/pipe-loopback-exec.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
@@ -18,7 +18,7 @@ function finish {
 trap finish EXIT
 
 NUM_SAMPLES=${NUM_SAMPLES:-100}
-FORMAT="villas.human"	
+FORMAT="villas.human"
 
 cat > config.json << EOF
 {
diff --git a/tests/integration/pipe-loopback-file.sh b/tests/integration/pipe-loopback-file.sh
index d157d3dd6..e4c605864 100755
--- a/tests/integration/pipe-loopback-file.sh
+++ b/tests/integration/pipe-loopback-file.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-iec61850-9-2.sh b/tests/integration/pipe-loopback-iec61850-9-2.sh
index 9730e6722..c4f684eef 100755
--- a/tests/integration/pipe-loopback-iec61850-9-2.sh
+++ b/tests/integration/pipe-loopback-iec61850-9-2.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
@@ -27,9 +27,9 @@ cat > config.json << EOF
 	"nodes": {
 		"node1": {
 			"type": "iec61850-9-2",
-		
+
 			"interface": "lo",
-		
+
 			"out": {
 				"svid": "1234",
 				"signals": [
diff --git a/tests/integration/pipe-loopback-loopback.sh b/tests/integration/pipe-loopback-loopback.sh
index 92c561580..d69916274 100755
--- a/tests/integration/pipe-loopback-loopback.sh
+++ b/tests/integration/pipe-loopback-loopback.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-mqtt.sh b/tests/integration/pipe-loopback-mqtt.sh
index 2c523245a..ca4f0b47d 100755
--- a/tests/integration/pipe-loopback-mqtt.sh
+++ b/tests/integration/pipe-loopback-mqtt.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
@@ -18,7 +18,7 @@ function finish {
 trap finish EXIT
 
 NUM_SAMPLES=${NUM_SAMPLES:-100}
-FORMAT="protobuf"	
+FORMAT="protobuf"
 VECTORIZE="10"
 HOST="localhost"
 
@@ -40,7 +40,7 @@ cat > config.json << EOF
 			"password": "guest",
 			"host": "${HOST}",
 			"port": 1883,
-		
+
 			"out": {
 				"publish": "test-topic"
 			},
diff --git a/tests/integration/pipe-loopback-nanomsg.sh b/tests/integration/pipe-loopback-nanomsg.sh
index 2e7a9f991..b1e4f3d6a 100755
--- a/tests/integration/pipe-loopback-nanomsg.sh
+++ b/tests/integration/pipe-loopback-nanomsg.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
@@ -19,7 +19,7 @@ trap finish EXIT
 
 NUM_SAMPLES=${NUM_SAMPLES:-100}
 
-FORMAT="protobuf"	
+FORMAT="protobuf"
 VECTORIZE="10"
 
 cat > config.json << EOF
@@ -27,7 +27,7 @@ cat > config.json << EOF
 	"nodes": {
 		"node1": {
 			"type": "nanomsg",
-			
+
 			"format": "${FORMAT}",
 			"vectorize": ${VECTORIZE},
 
diff --git a/tests/integration/pipe-loopback-redis.sh b/tests/integration/pipe-loopback-redis.sh
index ecd33f30e..c41f733af 100755
--- a/tests/integration/pipe-loopback-redis.sh
+++ b/tests/integration/pipe-loopback-redis.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
@@ -34,7 +34,7 @@ cat > config.json << EOF
 			"type": "redis",
 			"format": "protobuf",
 			"vectorize": 10,
-		
+
 			"uri": "tcp://${HOST}:6379/0"
 		}
 	}
diff --git a/tests/integration/pipe-loopback-rtp-dual.sh b/tests/integration/pipe-loopback-rtp-dual.sh
index 32fd82cfe..a898d2b09 100755
--- a/tests/integration/pipe-loopback-rtp-dual.sh
+++ b/tests/integration/pipe-loopback-rtp-dual.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-rtp-remote.sh b/tests/integration/pipe-loopback-rtp-remote.sh
index 46df8a054..0d5d928bc 100755
--- a/tests/integration/pipe-loopback-rtp-remote.sh
+++ b/tests/integration/pipe-loopback-rtp-remote.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-rtp-tbf.sh b/tests/integration/pipe-loopback-rtp-tbf.sh
index 89d08b9c6..2e0bfc7ed 100755
--- a/tests/integration/pipe-loopback-rtp-tbf.sh
+++ b/tests/integration/pipe-loopback-rtp-tbf.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-rtp.sh b/tests/integration/pipe-loopback-rtp.sh
index 0dbe6b143..4b8733486 100755
--- a/tests/integration/pipe-loopback-rtp.sh
+++ b/tests/integration/pipe-loopback-rtp.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-shmem.sh b/tests/integration/pipe-loopback-shmem.sh
index 5f7f01359..6f905e952 100755
--- a/tests/integration/pipe-loopback-shmem.sh
+++ b/tests/integration/pipe-loopback-shmem.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-socket-multicast.sh b/tests/integration/pipe-loopback-socket-multicast.sh
index 7a7178737..47d40583e 100755
--- a/tests/integration/pipe-loopback-socket-multicast.sh
+++ b/tests/integration/pipe-loopback-socket-multicast.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
@@ -28,7 +28,7 @@ cat > config.json << EOF
 
 			"in": {
 				"address": "*:12000",
-				
+
 				"multicast": {
 					"enabled": true,
 
diff --git a/tests/integration/pipe-loopback-socket-netem.sh b/tests/integration/pipe-loopback-socket-netem.sh
index 460794cf6..4b3901754 100755
--- a/tests/integration/pipe-loopback-socket-netem.sh
+++ b/tests/integration/pipe-loopback-socket-netem.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-socket.sh b/tests/integration/pipe-loopback-socket.sh
index 881e693a3..a25bd57c3 100755
--- a/tests/integration/pipe-loopback-socket.sh
+++ b/tests/integration/pipe-loopback-socket.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
@@ -46,7 +46,7 @@ case ${LAYER} in
 		LOCAL="00:00:00:00:00:00%lo:34997"
 		REMOTE="00:00:00:00:00:00%lo:34997"
 		;;
-		
+
 	unix)
 		LOCAL=$(mktemp)
 		REMOTE=${LOCAL}
@@ -58,7 +58,7 @@ cat > config.json << EOF
 	"nodes": {
 		"node1": {
 			"type": "socket",
-			
+
 			"vectorize": ${VECTORIZE},
 			"format": "${FORMAT}",
 			"layer": "${LAYER}",
diff --git a/tests/integration/pipe-loopback-websocket.sh b/tests/integration/pipe-loopback-websocket.sh
index a3b0e7b81..9e65044c1 100755
--- a/tests/integration/pipe-loopback-websocket.sh
+++ b/tests/integration/pipe-loopback-websocket.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
diff --git a/tests/integration/pipe-loopback-zeromq.sh b/tests/integration/pipe-loopback-zeromq.sh
index 0846b2955..fdba678ca 100755
--- a/tests/integration/pipe-loopback-zeromq.sh
+++ b/tests/integration/pipe-loopback-zeromq.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration loopback test for villas pipe.
 #
@@ -18,7 +18,7 @@ function finish {
 trap finish EXIT
 
 NUM_SAMPLES=${NUM_SAMPLES:-10}
-	
+
 VECTORIZE="10"
 FORMAT="protobuf"
 
diff --git a/tests/integration/pipe-python-protobuf.sh b/tests/integration/pipe-python-protobuf.sh
index 129704fe0..f9bff522d 100755
--- a/tests/integration/pipe-python-protobuf.sh
+++ b/tests/integration/pipe-python-protobuf.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Test protobuf serialization with Python client
 #
diff --git a/tests/integration/relay.sh b/tests/integration/relay.sh
index a02657360..bff41f2df 100755
--- a/tests/integration/relay.sh
+++ b/tests/integration/relay.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for villas relay
 #
diff --git a/tests/integration/signal.sh b/tests/integration/signal.sh
index cfeb9648a..7778bed64 100755
--- a/tests/integration/signal.sh
+++ b/tests/integration/signal.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Integration test for villas signal tool
 #
diff --git a/tests/integration/test-config.sh b/tests/integration/test-config.sh
index 761c0d03d..2041289fb 100755
--- a/tests/integration/test-config.sh
+++ b/tests/integration/test-config.sh
@@ -1,5 +1,5 @@
 
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Test example configurations
 #
diff --git a/tools/docker-dev.sh b/tools/docker-dev.sh
index 465379763..f7baa332a 100755
--- a/tools/docker-dev.sh
+++ b/tools/docker-dev.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Start a Docker based development environment
 #
diff --git a/tools/fpga-cat.sh b/tools/fpga-cat.sh
index 0fd1a73a8..3dc99f25e 100755
--- a/tools/fpga-cat.sh
+++ b/tools/fpga-cat.sh
@@ -1,5 +1,5 @@
-#!/bin/bash
-# 
+#!/usr/bin/env bash
+#
 # Author: Niklas Eiling <niklas.eiling@rwth-aachen.de>
 # SPDX-FileCopyrightText: 2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 # SPDX-License-Identifier: Apache-2.0
diff --git a/tools/fpga-non-root.sh b/tools/fpga-non-root.sh
index 3b70f3e44..fec19036f 100755
--- a/tools/fpga-non-root.sh
+++ b/tools/fpga-non-root.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Setup VFIO for non-root users
 #
diff --git a/tools/fpga-xbar-select.sh b/tools/fpga-xbar-select.sh
index 1db53ea61..a2a960e16 100644
--- a/tools/fpga-xbar-select.sh
+++ b/tools/fpga-xbar-select.sh
@@ -1,5 +1,5 @@
-#!/bin/bash
-# 
+#!/usr/bin/env bash
+#
 # Author: Niklas Eiling <niklas.eiling@rwth-aachen.de>
 # SPDX-FileCopyrightText: 2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 # SPDX-License-Identifier: Apache-2.0
diff --git a/tools/gdb-sudo.sh b/tools/gdb-sudo.sh
index a10c8a301..bab23683c 100755
--- a/tools/gdb-sudo.sh
+++ b/tools/gdb-sudo.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Run GDB as sudo for VS Code debugger
 # See: .vscode directory
diff --git a/tools/pci-rebind-device.sh b/tools/pci-rebind-device.sh
index 7382fff8f..be89c5fb7 100755
--- a/tools/pci-rebind-device.sh
+++ b/tools/pci-rebind-device.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Detach and rebind a PCI device to a PCI kernel driver
 #
diff --git a/tools/pci-reset-device.sh b/tools/pci-reset-device.sh
index 4cf877597..23a08b229 100755
--- a/tools/pci-reset-device.sh
+++ b/tools/pci-reset-device.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Reset PCI devices like FPGAs after a reflash
 #
diff --git a/tools/start-fpga.sh b/tools/start-fpga.sh
index 0693b2bd0..2c9743981 100755
--- a/tools/start-fpga.sh
+++ b/tools/start-fpga.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 # SPDX-License-Identifier: Apache-2.0
 
diff --git a/tools/tc-dump.sh b/tools/tc-dump.sh
index f0e7ff9e4..3dd6777b5 100755
--- a/tools/tc-dump.sh
+++ b/tools/tc-dump.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Dump Linux traffic control state to screen.
 #
diff --git a/tools/tc-netem.sh b/tools/tc-netem.sh
index e6aefaced..36ec7144c 100755
--- a/tools/tc-netem.sh
+++ b/tools/tc-netem.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Transparent Network Emulation Proxy for Layer 2 & 3
 #
diff --git a/tools/tc-netem2.sh b/tools/tc-netem2.sh
index 6f5ebed14..517ebb651 100755
--- a/tools/tc-netem2.sh
+++ b/tools/tc-netem2.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Transparent Network Emulation Proxy for Layer 2 & 3
 #
diff --git a/tools/tune-realtime.sh b/tools/tune-realtime.sh
index 8f1819df3..1eca0ca87 100755
--- a/tools/tune-realtime.sh
+++ b/tools/tune-realtime.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 # SPDX-License-Identifier: Apache-2.0
 
diff --git a/tools/villas b/tools/villas
index e3f95be10..95f0cc1aa 100755
--- a/tools/villas
+++ b/tools/villas
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Wrapper to start tool of the VILLASnode suite
 #
 # This allows you to use VILLASnode tools like this:
diff --git a/tools/villas-api.sh b/tools/villas-api.sh
index e634af21a..82c9543ac 100755
--- a/tools/villas-api.sh
+++ b/tools/villas-api.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 # SPDX-License-Identifier: Apache-2.0
 
diff --git a/tools/villas-helper.sh b/tools/villas-helper.sh
index 7833eb64b..700e70580 100755
--- a/tools/villas-helper.sh
+++ b/tools/villas-helper.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Some helper functions for our integration test suite
 #
@@ -8,12 +8,12 @@
 
 function villas_format_supports_vectorize() {
 	local FORMAT=$1
-	
+
 	case ${FORMAT} in
 		raw*) return 1 ;;
 		gtnet*) return 1 ;;
 	esac
-	
+
 	return 0
 }
 
@@ -24,7 +24,7 @@ function villas_format_supports_header() {
 		raw*) return 1 ;;
 		gtnet) return 1 ;;
 	esac
-	
+
 	return 0
 }