diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 000000000..a35d22588
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,10 @@
+[*.sh]
+# like -i=2
+indent_style = space
+indent_size = 2
+
+#shell_variant      = posix # like -ln=posix
+#binary_next_line   = true  # like -bn
+switch_case_indent = true  # like -ci
+space_redirects    = true  # like -sr
+#keep_padding       = true  # like -kp
diff --git a/linux/dfu-util.sh b/linux/dfu-util.sh
index 9b828f090..2f355b4ce 100755
--- a/linux/dfu-util.sh
+++ b/linux/dfu-util.sh
@@ -4,10 +4,10 @@
 #
 
 # Get the directory where the script is running.
-DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 
 # Choose dfu program by arch
-if [ `uname -m` ==  "x86_64" ]; then
+if [ "$(uname -m)" == "x86_64" ]; then
   DFU_UTIL=${DIR}/dfu-util_x86_64/dfu-util
 else
   DFU_UTIL=${DIR}/dfu-util/dfu-util
diff --git a/linux/install.sh b/linux/install.sh
index 32870a1c2..a7cca0a6d 100755
--- a/linux/install.sh
+++ b/linux/install.sh
@@ -1,15 +1,14 @@
 #!/bin/sh
 
 if sudo [ -w /etc/udev/rules.d ]; then
-    echo "Copying Maple-specific udev rules..."
-    sudo cp -v 45-maple.rules /etc/udev/rules.d/45-maple.rules
-    sudo chown root:root /etc/udev/rules.d/45-maple.rules
-    sudo chmod 644 /etc/udev/rules.d/45-maple.rules
-    echo "Reloading udev rules"
-    sudo udevadm control --reload-rules
-    echo "Adding current user to dialout group"
-    sudo adduser $USER dialout
+  echo "Copying Maple-specific udev rules..."
+  sudo cp -v 45-maple.rules /etc/udev/rules.d/45-maple.rules
+  sudo chown root:root /etc/udev/rules.d/45-maple.rules
+  sudo chmod 644 /etc/udev/rules.d/45-maple.rules
+  echo "Reloading udev rules"
+  sudo udevadm control --reload-rules
+  echo "Adding current user to dialout group"
+  sudo adduser "$USER" dialout
 else
-    echo "Couldn't copy to /etc/udev/rules.d/; you probably have to run this script as root? Or your distribution of Linux doesn't include udev; try running the IDE itself as root."
+  echo "Couldn't copy to /etc/udev/rules.d/; you probably have to run this script as root? Or your distribution of Linux doesn't include udev; try running the IDE itself as root."
 fi
-
diff --git a/linux/maple_upload b/linux/maple_upload
deleted file mode 100755
index 65d31439b..000000000
--- a/linux/maple_upload
+++ /dev/null
@@ -1,38 +0,0 @@
-#!/bin/bash
-
-#set -e
-
-if [ $# -lt 4 ]; then
-    echo "Usage: $0 $# <dummy_port> <altID> <usbID> <binfile>" >&2
-    exit 1
-fi
-dummy_port="$1"; altID="$2"; usbID="$3"; binfile="$4"; dummy_port_fullpath="/dev/$1"
-if [ $# -eq 5 ]; then
-    dfuse_addr="--dfuse-address $5"
-else
-    dfuse_addr=""
-fi
-
-
-# Get the directory where the script is running.
-DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
-
-#  ----------------- IMPORTANT -----------------
-# The 2nd parameter to upload-reset is the delay after resetting before it exits
-# This value is in milliseonds
-# You may need to tune this to your system
-# 750ms to 1500ms seems to work on my Mac
-
-
-"${DIR}/upload-reset" ${dummy_port_fullpath} 750
-
-"${DIR}/dfu-util.sh" -d ${usbID} -a ${altID} -D ${binfile} ${dfuse_addr} -R
-
-echo -n Waiting for ${dummy_port_fullpath} serial...
-
-COUNTER=0
-while [ ! -r ${dummy_port_fullpath} ] && ((COUNTER++ < 40)); do
-    sleep 0.1
-done
-
-echo Done
diff --git a/linux/maple_upload.sh b/linux/maple_upload.sh
new file mode 100755
index 000000000..6f767332e
--- /dev/null
+++ b/linux/maple_upload.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+#set -e
+
+if [ $# -lt 4 ]; then
+  echo "Usage: $0 $# <dummy_port> <altID> <usbID> <binfile>" >&2
+  exit 1
+fi
+altID="$2"
+usbID="$3"
+binfile="$4"
+dummy_port_fullpath="/dev/$1"
+if [ $# -eq 5 ]; then
+  dfuse_addr="--dfuse-address $5"
+else
+  dfuse_addr=""
+fi
+
+# Get the directory where the script is running.
+DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+
+#  ----------------- IMPORTANT -----------------
+# The 2nd parameter to upload-reset is the delay after resetting before it exits
+# This value is in milliseonds
+# You may need to tune this to your system
+# 750ms to 1500ms seems to work on my Mac
+
+"${DIR}/upload-reset" "${dummy_port_fullpath}" 750
+
+"${DIR}/dfu-util.sh" -d "${usbID}" -a "${altID}" -D "${binfile}" ${dfuse_addr} -R
+
+echo -n Waiting for "${dummy_port_fullpath}" serial...
+
+COUNTER=0
+while [ ! -r "${dummy_port_fullpath}" ] && ((COUNTER++ < 40)); do
+  sleep 0.1
+done
+
+echo Done
diff --git a/linux/massStorageCopy b/linux/massStorageCopy.sh
similarity index 74%
rename from linux/massStorageCopy
rename to linux/massStorageCopy.sh
index f4d864931..cf476220b 100755
--- a/linux/massStorageCopy
+++ b/linux/massStorageCopy.sh
@@ -1,7 +1,5 @@
 #!/bin/bash
-set -o nounset                              # Treat unset variables as an error
-#set -x
-VERSION="0.1"
+set -o nounset # Treat unset variables as an error
 
 # List
 bin_filepath=
@@ -10,11 +8,10 @@ mountpoint_path=
 
 ###############################################################################
 ## Help function
-usage()
-{
+usage() {
   echo "############################################################"
   echo "##"
-  echo "## `basename $0` [-I <filepath>] [-O <mountpoint(s)> ]"
+  echo "## $(basename "$0") [-I <filepath>] [-O <mountpoint(s)> ]"
   echo "##"
   echo "## Options:"
   echo "##   -I: filepath binary to copy"
@@ -32,29 +29,29 @@ if [ $# -lt 2 ]; then
 fi
 
 # Parsing options
-if [ $1 ==  "-I" ]; then
+if [ "$1" == "-I" ]; then
   shift 1
 fi
 
 bin_filepath=$1
 
-if [ $2 ==  "-O" ]; then
+if [ "$2" == "-O" ]; then
   shift 1
 fi
 # Strip first and last ""
 mountpoint_name="${2%\"}"
 mountpoint_name="${mountpoint_name#\"}"
 
-if [ -z $bin_filepath ]; then
+if [ -z "$bin_filepath" ]; then
   echo "No binary file path provided!"
   exit 1
 fi
-if [ -z $mountpoint_name ]; then
+if [ -z "$mountpoint_name" ]; then
   echo "No mountpoint name provided!"
   exit 1
 fi
 
-if [ ! -f $bin_filepath ]; then
+if [ ! -f "$bin_filepath" ]; then
   echo "$bin_filepath not found!"
   exit 2
 fi
@@ -63,11 +60,11 @@ fi
 IFS=',' read -ra mnt_list <<< "$mountpoint_name"
 for mnt in "${mnt_list[@]}"; do
   # mnt_path_list=(`cat /proc/mounts | cut -d' ' -f2 | sort -u | grep $mnt`)
-  mnt_path_list=(`df -Hl | grep -v "Mounted on" | rev | cut -d' ' -f1 | rev | sort -u | grep $mnt`)
+  mnt_path_list=($(df -Hl | grep -v "Mounted on" | rev | cut -d' ' -f1 | rev | sort -u | grep "$mnt"))
   if [ ${#mnt_path_list[@]} -ne 0 ]; then
     # Ensure to have exact match
     for mnt_path in "${mnt_path_list[@]}"; do
-      mnt_name=`echo $mnt_path | rev | cut -d'/' -f1 | rev`
+      mnt_name=$(echo "$mnt_path" | rev | cut -d'/' -f1 | rev)
       if [ "$mnt_name" = "$mnt" ]; then
         echo "Found '$mnt' at '$mnt_path'"
         mountpoint_path=$mnt_path
@@ -77,7 +74,7 @@ for mnt in "${mnt_list[@]}"; do
   fi
 done
 
-if [ -z $mountpoint_path ] || [ ! -d $mountpoint_path ]; then
+if [ -z "$mountpoint_path" ] || [ ! -d "$mountpoint_path" ]; then
   echo "$mountpoint_name not found."
   echo "Please ensure the device is correctly connected and mounted."
   exit 3
@@ -85,6 +82,6 @@ fi
 
 # Copy the binary to the mountpoint
 echo "Copying $bin_filepath to $mountpoint_path..."
-cp $bin_filepath $mountpoint_path
+cp "$bin_filepath" "$mountpoint_path"
 
 exit $?
diff --git a/linux/stm32CubeProg.sh b/linux/stm32CubeProg.sh
index 1d2adeacf..9d131c3a1 100755
--- a/linux/stm32CubeProg.sh
+++ b/linux/stm32CubeProg.sh
@@ -1,20 +1,18 @@
 #!/bin/bash
-set -o nounset                              # Treat unset variables as an error
-#set -x
+set -o nounset # Treat unset variables as an error
 STM32CP_CLI=STM32_Programmer.sh
 ADDRESS=0x8000000
-ERASE=
-MODE=
-PORT=
-OPTS=
+ERASE=""
+MODE=""
+PORT=""
+OPTS=""
 
 ###############################################################################
 ## Help function
-usage()
-{
+usage() {
   echo "############################################################"
   echo "##"
-  echo "## `basename $0` <protocol> <file_path> [OPTIONS]"
+  echo "## $(basename "$0") <protocol> <file_path> [OPTIONS]"
   echo "##"
   echo "## protocol:"
   echo "##   0: SWD"
@@ -34,17 +32,14 @@ usage()
   echo "##       -rst: Reset system"
   echo "##       -s: start automatically (optional)"
   echo "############################################################"
-  exit $1
+  exit "$1"
 }
 
-
 check_tool() {
-  command -v $STM32CP_CLI >/dev/null 2>&1
-  if [ $? != 0 ]; then
+  if ! command -v $STM32CP_CLI > /dev/null 2>&1; then
     export PATH="$HOME/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin":$PATH
   fi
-  command -v $STM32CP_CLI >/dev/null 2>&1
-  if [ $? != 0 ]; then
+  if ! command -v $STM32CP_CLI > /dev/null 2>&1; then
     echo "$STM32CP_CLI not found."
     echo "Please install it or add '<STM32CubeProgrammer path>/bin' to your PATH environment:"
     echo "https://www.st.com/en/development-tools/stm32cubeprog.html"
@@ -56,8 +51,8 @@ check_tool() {
 check_tool
 
 if [ $# -lt 2 ]; then
-    echo "Not enough arguments!"
-    usage 2
+  echo "Not enough arguments!"
+  usage 2
 fi
 
 # Parse options
@@ -65,8 +60,8 @@ PROTOCOL=$1
 FILEPATH=$2
 # Protocol $1
 # 1x: Erase all sectors
-if [ $1 -ge 10 ]; then
-  ERASE='-e all'
+if [ "$1" -ge 10 ]; then
+  ERASE="yes"
   PROTOCOL=$(($1 - 10))
 fi
 # Protocol $1
@@ -75,29 +70,32 @@ fi
 # 2: DFU
 case $PROTOCOL in
   0)
-    PORT='SWD'
-    MODE='mode=UR'
-    shift 2;;
+    PORT="SWD"
+    MODE="mode=UR"
+    shift 2
+    ;;
   1)
     if [ $# -lt 3 ]; then
       usage 3
     else
       PORT=$3
       shift 3
-    fi;;
+    fi
+    ;;
   2)
-    PORT='USB1'
-    shift 2;;
+    PORT="USB1"
+    shift 2
+    ;;
   *)
     echo "Protocol unknown!"
-    usage 4;;
+    usage 4
+    ;;
 esac
 
 if [ $# -gt 0 ]; then
-  OPTS="$@"
+  OPTS="$*"
 fi
 
-${STM32CP_CLI} -c port=${PORT} ${MODE} ${ERASE} -q -d ${FILEPATH} ${ADDRESS} ${OPTS}
-
-exit 0
+${STM32CP_CLI} -c port=${PORT} ${MODE} ${ERASE:+"-e all"} -q -d "${FILEPATH}" ${ADDRESS} "${OPTS}"
 
+exit $?
diff --git a/macosx/maple_upload b/macosx/maple_upload.sh
similarity index 59%
rename from macosx/maple_upload
rename to macosx/maple_upload.sh
index 3521aa1ef..5e567e02c 100755
--- a/macosx/maple_upload
+++ b/macosx/maple_upload.sh
@@ -3,15 +3,16 @@
 set -e
 
 if [ $# -lt 4 ]; then
-    echo "Usage: $0 $# <dummy_port> <altID> <usbID> <binfile>" >&2
-    exit 1
+  echo "Usage: $0 $# <dummy_port> <altID> <usbID> <binfile>" >&2
+  exit 1
 fi
-dummy_port=$1; altID=$2; usbID=$3; binfile=$4;dummy_port_fullpath="/dev/$1"
-
+altID=$2
+usbID=$3
+binfile=$4
+dummy_port_fullpath="/dev/$1"
 
 # Get the directory where the script is running.
-DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
-
+DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 
 # -----------------  Old code to reset the USB - which doesn't seem to work --------
 #
@@ -31,32 +32,32 @@ DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
 # You may need to tune this to your system
 # 750ms to 1500ms seems to work on my Mac
 
-${DIR}/upload-reset ${dummy_port_fullpath} 750
+"${DIR}"/upload-reset "${dummy_port_fullpath}" 750
 
 if [ $# -eq 5 ]; then
-    dfuse_addr="--dfuse-address $5"
+  dfuse_addr="--dfuse-address $5"
 else
-    dfuse_addr=""
+  dfuse_addr=""
 fi
 
 #DFU_UTIL=/usr/local/bin/dfu-util
 DFU_UTIL=${DIR}/dfu-util/dfu-util
-if [ ! -x ${DFU_UTIL} ]; then
-    DFU_UTIL=/opt/local/bin/dfu-util
+if [ ! -x "${DFU_UTIL}" ]; then
+  DFU_UTIL=/opt/local/bin/dfu-util
 fi
 
 if [ ! -x ${DFU_UTIL} ]; then
-    echo "$0: error: cannot find ${DFU_UTIL}" >&2
-    exit 2
+  echo "$0: error: cannot find ${DFU_UTIL}" >&2
+  exit 2
 fi
 
-${DFU_UTIL} -d ${usbID} -a ${altID} -D ${binfile} -R ${dfuse_addr} -R
+${DFU_UTIL} -d "${usbID}" -a "${altID}" -D "${binfile}" -R ${dfuse_addr} -R
 
-echo -n Waiting for ${dummy_port_fullpath} serial...
+echo -n Waiting for "${dummy_port_fullpath}" serial...
 
 COUNTER=0
-while [ ! -c ${dummy_port_fullpath} ] && ((COUNTER++ < 40)); do
-    sleep 0.1
+while [ ! -c "${dummy_port_fullpath}" ] && ((COUNTER++ < 40)); do
+  sleep 0.1
 done
 
 echo Done
diff --git a/macosx/massStorageCopyMacOsX b/macosx/massStorageCopy.sh
similarity index 73%
rename from macosx/massStorageCopyMacOsX
rename to macosx/massStorageCopy.sh
index c994b3229..abc8869ae 100755
--- a/macosx/massStorageCopyMacOsX
+++ b/macosx/massStorageCopy.sh
@@ -1,7 +1,5 @@
 #!/bin/bash
-set -o nounset                              # Treat unset variables as an error
-#set -x
-VERSION="0.1"
+set -o nounset # Treat unset variables as an error
 
 # List
 bin_filepath=
@@ -10,11 +8,10 @@ mountpoint_path=
 
 ###############################################################################
 ## Help function
-usage()
-{
+usage() {
   echo "############################################################"
   echo "##"
-  echo "## `basename $0` [-I <filepath>] [-O <mountpoint(s)> ]"
+  echo "## $(basename "$0") [-I <filepath>] [-O <mountpoint(s)> ]"
   echo "##"
   echo "## Options:"
   echo "##   -I: filepath binary to copy"
@@ -32,29 +29,29 @@ if [ $# -lt 2 ]; then
 fi
 
 # Parsing options
-if [ $1 ==  "-I" ]; then
+if [ "$1" == "-I" ]; then
   shift 1
 fi
 
 bin_filepath=$1
 
-if [ $2 ==  "-O" ]; then
+if [ "$2" == "-O" ]; then
   shift 1
 fi
 # Strip first and last ""
 mountpoint_name="${2%\"}"
 mountpoint_name="${mountpoint_name#\"}"
 
-if [ -z $bin_filepath ]; then
+if [ -z "$bin_filepath" ]; then
   echo "No binary file path provided!"
   exit 1
 fi
-if [ -z $mountpoint_name ]; then
+if [ -z "$mountpoint_name" ]; then
   echo "No mountpoint name provided!"
   exit 1
 fi
 
-if [ ! -f $bin_filepath ]; then
+if [ ! -f "$bin_filepath" ]; then
   echo "$bin_filepath not found!"
   exit 2
 fi
@@ -62,11 +59,11 @@ fi
 # Search the mountpoint
 IFS=',' read -ra mnt_list <<< "$mountpoint_name"
 for mnt in "${mnt_list[@]}"; do
-  mnt_path_list=(`df -Hl | grep -v "Mounted on" | rev | cut -d' ' -f1 | rev | sort -u | grep $mnt`)
+  mnt_path_list=($(df -Hl | grep -v "Mounted on" | rev | cut -d' ' -f1 | rev | sort -u | grep "$mnt"))
   if [ ${#mnt_path_list[@]} -ne 0 ]; then
     # Ensure to have exact match
     for mnt_path in "${mnt_path_list[@]}"; do
-      mnt_name=`echo $mnt_path | rev | cut -d'/' -f1 | rev`
+      mnt_name=$(echo "$mnt_path" | rev | cut -d'/' -f1 | rev)
       if [ "$mnt_name" = "$mnt" ]; then
         echo "Found '$mnt' at '$mnt_path'"
         mountpoint_path=$mnt_path
@@ -76,7 +73,7 @@ for mnt in "${mnt_list[@]}"; do
   fi
 done
 
-if [ -z $mountpoint_path ] || [ ! -d $mountpoint_path ]; then
+if [ -z "$mountpoint_path" ] || [ ! -d "$mountpoint_path" ]; then
   echo "$mountpoint_name not found."
   echo "Please ensure the device is correctly connected and mounted."
   exit 3
@@ -84,6 +81,6 @@ fi
 
 # Copy the binary to the mountpoint
 echo "Copying $bin_filepath to $mountpoint_path..."
-cp $bin_filepath $mountpoint_path
+cp "$bin_filepath" "$mountpoint_path"
 
 exit $?
diff --git a/macosx/stm32CubeProg b/macosx/stm32CubeProg.sh
similarity index 74%
rename from macosx/stm32CubeProg
rename to macosx/stm32CubeProg.sh
index 4dda68c1d..aa0037f27 100755
--- a/macosx/stm32CubeProg
+++ b/macosx/stm32CubeProg.sh
@@ -1,21 +1,20 @@
 #!/bin/bash
-set -o nounset                              # Treat unset variables as an error
+set -o nounset # Treat unset variables as an error
 STM32CP_CLI=STM32_Programmer_CLI
 ADDRESS=0x8000000
-ERASE=
-MODE=
-PORT=
-OPTS=
+ERASE=""
+MODE=""
+PORT=""
+OPTS=""
 
 ###############################################################################
 ## Help function
-usage()
-{
+usage() {
   echo "############################################################"
   echo "##"
-  echo "## `basename $0` <protocol> <file_path> [OPTIONS]"
+  echo "## $(basename "$0") <protocol> <file_path> [OPTIONS]"
   echo "##"
-  echo "## protocol: "
+  echo "## protocol:"
   echo "##   0: SWD"
   echo "##   1: Serial"
   echo "##   2: DFU"
@@ -33,17 +32,14 @@ usage()
   echo "##       -rst: Reset system"
   echo "##       -s: start automatically (optional)"
   echo "############################################################"
-  exit $1
+  exit "$1"
 }
 
-
 check_tool() {
-  command -v $STM32CP_CLI >/dev/null 2>&1
-  if [ $? != 0 ]; then
+  if ! command -v $STM32CP_CLI > /dev/null 2>&1; then
     export PATH="/Applications/STMicroelectronics/STM32Cube/STM32CubeProgrammer/STM32CubeProgrammer.app/Contents/MacOs/bin":$PATH
   fi
-  command -v $STM32CP_CLI >/dev/null 2>&1
-  if [ $? != 0 ]; then
+  if ! command -v $STM32CP_CLI > /dev/null 2>&1; then
     echo "$STM32CP_CLI not found."
     echo "Please install it or add '<STM32CubeProgrammer path>/bin' to your PATH environment:"
     echo "https://www.st.com/en/development-tools/stm32cubeprog.html"
@@ -55,8 +51,8 @@ check_tool() {
 check_tool
 
 if [ $# -lt 2 ]; then
-    echo "Not enough arguments!"
-    usage 2
+  echo "Not enough arguments!"
+  usage 2
 fi
 
 # Parse options
@@ -64,8 +60,8 @@ PROTOCOL=$1
 FILEPATH=$2
 # Protocol $1
 # 1x: Erase all sectors
-if [ $1 -ge 10 ]; then
-  ERASE='-e all'
+if [ "$1" -ge 10 ]; then
+  ERASE="yes"
   PROTOCOL=$(($1 - 10))
 fi
 # Protocol $1
@@ -73,31 +69,33 @@ fi
 # 1: Serial
 # 2: DFU
 case $PROTOCOL in
-
   0)
-    PORT='SWD'
-    MODE='mode=UR'
-    shift 2;;
+    PORT="SWD"
+    MODE="mode=UR"
+    shift 2
+    ;;
   1)
     if [ $# -lt 3 ]; then
       usage 3
     else
       PORT=$3
       shift 3
-    fi;;
+    fi
+    ;;
   2)
-    PORT='USB1'
-    shift 2;;
+    PORT="USB1"
+    shift 2
+    ;;
   *)
     echo "Protocol unknown!"
-    usage 4;;
+    usage 4
+    ;;
 esac
 
 if [ $# -gt 0 ]; then
-  OPTS="$@"
+  OPTS="$*"
 fi
 
-${STM32CP_CLI} -c port=${PORT} ${MODE} ${ERASE} -q -d ${FILEPATH} ${ADDRESS} ${OPTS}
-
-exit 0
+${STM32CP_CLI} -c port=${PORT} ${MODE} ${ERASE:+"-e all"} -q -d "${FILEPATH}" ${ADDRESS} "${OPTS}"
 
+exit $?
diff --git a/run_arduino_gen.sh b/run_arduino_gen.sh
index 269caeb3b..f0a0ea8de 100755
--- a/run_arduino_gen.sh
+++ b/run_arduino_gen.sh
@@ -18,7 +18,6 @@ ELF_HASH=""
 ELF_BINARY=""
 ### END OF BINARY PART %} ###
 
-
 autodetect_board() {
   if [ ! -d /proc/device-tree/ ]; then
     echo "Proc Device tree are not available, Could not detect on which board we are" > /dev/kmsg
@@ -26,28 +25,28 @@ autodetect_board() {
   fi
 
   #search on device tree compatible entry the board type
-  if $(grep -q "stm32mp157c-ev" /proc/device-tree/compatible) ; then
+  if grep -q "stm32mp157c-ev" /proc/device-tree/compatible; then
     BOARD="STM32MP157_EVAL"
-  elif $(grep -q "stm32mp157c-dk" /proc/device-tree/compatible) ; then
+  elif grep -q "stm32mp157c-dk" /proc/device-tree/compatible; then
     BOARD="STM32MP157_DK"
-  elif $(grep -q "stm32mp157a-dk" /proc/device-tree/compatible) ; then
+  elif grep -q "stm32mp157a-dk" /proc/device-tree/compatible; then
     BOARD="STM32MP157_DK"
-  elif $(grep -q "stm32mp157" /proc/device-tree/compatible) ; then
+  elif grep -q "stm32mp157" /proc/device-tree/compatible; then
     BOARD="STM32MP157_GENERIC"
   else
     echo "Board is not an STM32MP157 BOARD" > /dev/kmsg
     exit 1
   fi
+  echo "Board is $BOARD" > /dev/kmsg
 }
 
-
 firmware_load() {
   if [ -z "$ELF_BINARY" ]; then
     echo "No Arduino binary contained. Run generate command first."
     exit 1
   fi
 
-  if ( echo "$ELF_HASH $ELF_INSTALL_PATH" | sha256sum --status -c - 2>/dev/null ); then
+  if (echo "$ELF_HASH $ELF_INSTALL_PATH" | sha256sum --status -c - 2> /dev/null); then
     # The same firmware already exists, skip this step
     echo "The same firmware is already installed. Starting..."
     return 0
@@ -55,39 +54,36 @@ firmware_load() {
 
   # Decode base64-encoded binary to a temp directory and check hash
   tmp_elf_file="/tmp/$ELF_NAME"
-  if which uudecode >/dev/null 2>&1; then
-    echo -n "$ELF_BINARY" | uudecode -o /dev/stdout | gzip -d > "$tmp_elf_file"
-  else 
-    echo -n "$ELF_BINARY" | tail -n +2 | base64 -d - 2>/dev/null | gzip -d > "$tmp_elf_file"
+  if which uudecode > /dev/null 2>&1; then
+    printf "%s" "$ELF_BINARY" | uudecode -o /dev/stdout | gzip -d > "$tmp_elf_file"
+  else
+    printf "%s" "$ELF_BINARY" | tail -n +2 | base64 -d - 2> /dev/null | gzip -d > "$tmp_elf_file"
   fi
   echo "$ELF_HASH $tmp_elf_file" | sha256sum --status -c -
-  
+
   # Copy elf into /lib/firmware
   mv $tmp_elf_file $ELF_INSTALL_PATH
   echo "Arduino: Executable created: $ELF_INSTALL_PATH" > /dev/kmsg
 }
 
-
 firmware_start() {
   # Change the name of the firmware
-  echo -n arduino.ino.elf > $REMOTEPROC_DIR/firmware
+  printf arduino.ino.elf > $REMOTEPROC_DIR/firmware
 
   # Change path to found firmware
-  #echo -n /home/root >/sys/module/firmware_class/parameters/path
+  #printf /home/root >/sys/module/firmware_class/parameters/path
 
   # Restart firmware
   echo "Arduino: Starting $ELF_INSTALL_PATH" > /dev/kmsg
-  echo start > $REMOTEPROC_DIR/state 2>/dev/null || true
+  echo start > $REMOTEPROC_DIR/state 2> /dev/null || true
 }
 
-
 firmware_stop() {
   # Stop the firmware
   echo "Arduino: Stopping $ELF_INSTALL_PATH" > /dev/kmsg
-  echo stop > $REMOTEPROC_DIR/state 2>/dev/null || true
+  echo stop > $REMOTEPROC_DIR/state 2> /dev/null || true
 }
 
-
 generate_packaged_script() {
   elf_path="$1"
   this_script=$(readlink -f "$0")
@@ -96,28 +92,27 @@ generate_packaged_script() {
     echo "The output file name must be diffent from this script file"
     exit 1
   fi
-  
+
   # Generate a copy of this script with a self-contained elf binary and its hash
   # The elf binary is gzip'ed, making its size to 1/6, and then Base64-encoded
   # using uuencode.
-  head -n $(grep -n "{%" "$this_script" | cut -d: -f1 | head -n 1) $this_script > $output_script 
-  echo "ELF_HASH='$(sha256sum $elf_path | cut -d' ' -f1)'" >> $output_script
-  echo -n "ELF_BINARY='" >> $output_script
-  if which uuencode >/dev/null 2>&1; then
-    gzip -c "$elf_path" | uuencode -m $ELF_NAME >> $output_script
+  head -n "$(grep -n "{%" "$this_script" | cut -d: -f1 | head -n 1)" "$this_script" > "$output_script"
+  echo "ELF_HASH='$(sha256sum "$elf_path" | cut -d' ' -f1)'" >> "$output_script"
+  printf "ELF_BINARY='" >> "$output_script"
+  if which uuencode > /dev/null 2>&1; then
+    gzip -c "$elf_path" | uuencode -m $ELF_NAME >> "$output_script"
   else
-    echo "begin-base64 644 $ELF_NAME" >> $output_script
-    gzip -c "$elf_path" | base64 >> $output_script
+    echo "begin-base64 644 $ELF_NAME" >> "$output_script"
+    gzip -c "$elf_path" | base64 >> "$output_script"
   fi
-  echo "'" >> $output_script
-  tail -n +$(grep -n "%}" "$this_script" | cut -d: -f1 | head -n 1) $this_script >> $output_script
-  dos2unix $output_script 2> /dev/null
+  echo "'" >> "$output_script"
+  tail -n +"$(grep -n "%}" "$this_script" | cut -d: -f1 | head -n 1)" "$this_script" >> "$output_script"
+  dos2unix "$output_script" 2> /dev/null
 }
 
-
 systemd_install() {
-  mkdir -p $(dirname $INSTALL_PATH)
-  cp $0 "$INSTALL_PATH"
+  mkdir -p "$(dirname $INSTALL_PATH)"
+  cp "$0" "$INSTALL_PATH"
   echo "File created: $INSTALL_PATH"
   cat > "$SYSTEMD_SERVICE_PATH" << EOF
 [Unit]
@@ -136,16 +131,15 @@ EOF
   echo "File created: $SYSTEMD_SERVICE_PATH"
   echo "Please wait until systemd services are reloaded..."
   systemctl daemon-reload
-  systemctl enable $(basename $SYSTEMD_SERVICE_PATH)
+  systemctl enable "$(basename "$SYSTEMD_SERVICE_PATH")"
 }
 
-
 systemd_uninstall() {
-  systemctl stop $(basename $SYSTEMD_SERVICE_PATH)
-  systemctl disable $(basename $SYSTEMD_SERVICE_PATH)
+  systemctl stop "$(basename "$SYSTEMD_SERVICE_PATH")"
+  systemctl disable "$(basename "$SYSTEMD_SERVICE_PATH")"
   rm "$SYSTEMD_SERVICE_PATH"
   echo "File deleted: $SYSTEMD_SERVICE_PATH"
-  rm -r $(dirname $INSTALL_PATH)
+  rm -r "$(dirname $INSTALL_PATH)"
   echo "File deleted: $INSTALL_PATH"
 }
 
@@ -161,13 +155,13 @@ try_send() {
       echo "If you didn't enable the virtual serial, ignore this message."
       return 0
     fi
-    sleep 1;
-    count=$(expr $count + 1)
+    sleep 1
+    count=$((count + 1))
   done
   # Linux host must send any dummy data first to finish initialization of rpmsg
   # on the coprocessor side. This message should be discarded.
   # See: https://github.com/OpenAMP/open-amp/issues/182
-  echo -n "DUMMY" >$RPMSG_DIR
+  printf "DUMMY" > $RPMSG_DIR
   echo "Virtual serial $RPMSG_DIR connection established."
 }
 
@@ -195,12 +189,12 @@ case "$1" in
   install)
     autodetect_board
     systemd_install
-    echo "Auto-start service $(basename $SYSTEMD_SERVICE_PATH) installed."
+    echo "Auto-start service $(basename "$SYSTEMD_SERVICE_PATH") installed."
     ;;
   uninstall)
     autodetect_board
     systemd_uninstall
-    echo "Auto-start service $(basename $SYSTEMD_SERVICE_PATH) uninstalled."
+    echo "Auto-start service $(basename "$SYSTEMD_SERVICE_PATH") uninstalled."
     ;;
   monitor)
     autodetect_board
@@ -209,7 +203,7 @@ case "$1" in
     ;;
   send-msg)
     autodetect_board
-    echo "${@:2}" >$RPMSG_DIR
+    echo "${@:2}" > $RPMSG_DIR
     ;;
   send-file)
     autodetect_board
@@ -227,10 +221,10 @@ case "$1" in
     ;;
   generate)
     output=$(echo "$3" | sed 's/\.ino\././g')
-    generate_packaged_script $2 $output
+    generate_packaged_script "$2" "$output"
     echo "$(readlink -f "$output") generated successfully."
     echo "This file should be uploaded manually by SCP, SFTP, Kermit, or etc."
-    echo "Then run \"sh ./$(basename $output) start\" command in the board's console."
+    echo "Then run \"sh ./$(basename "$output") start\" command in the board's console."
     echo "For detailed instructions, please visit:"
     echo "  https://github.com/stm32duino/Arduino_Core_STM32/tree/master/variants/STM32MP157_DK/README.md"
     ;;