diff --git a/qbittorrent/rootfs/etc/openvpn/down.sh b/qbittorrent/rootfs/etc/openvpn/down.sh
index c83569cbe..665e4ae33 100644
--- a/qbittorrent/rootfs/etc/openvpn/down.sh
+++ b/qbittorrent/rootfs/etc/openvpn/down.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-# shellcheck disable=SD2154,SC2004,SC2059,SC2086
+# shellcheck disable=SC2154,SC2004,SC2059,SC2086
 # Copyright (c) 2006-2007 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # Contributed by Roy Marples (uberlord@gentoo.org)
diff --git a/qbittorrent/rootfs/etc/openvpn/up.sh b/qbittorrent/rootfs/etc/openvpn/up.sh
index 8d369a2f1..7348c64d0 100644
--- a/qbittorrent/rootfs/etc/openvpn/up.sh
+++ b/qbittorrent/rootfs/etc/openvpn/up.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-# shellcheck disable=SD2154,SC2004,SC2059,SC2086
+# shellcheck disable=SC2154,SC2004,SC2059,SC2086
 
 # launch qbittorrent
 /etc/openvpn/up-qbittorrent.sh "${4}" &
diff --git a/readarr/rootfs/etc/cont-init.d/00-config_location.sh b/readarr/rootfs/etc/cont-init.d/00-config_location.sh
index 695d2772d..3216aab5c 100644
--- a/readarr/rootfs/etc/cont-init.d/00-config_location.sh
+++ b/readarr/rootfs/etc/cont-init.d/00-config_location.sh
@@ -4,8 +4,8 @@
 CONFIG_LOCATION=$(bashio::config 'CONFIG_LOCATION')
 bashio::log.info "Config stored in $CONFIG_LOCATION"
 
-mkdir -p $CONFIG_LOCATION
-chown -R abc:abc $CONFIG_LOCATION
+mkdir -p "$CONFIG_LOCATION"
+chown -R abc:abc "$CONFIG_LOCATION"
 
 sed -i "s|/config/readarr|$CONFIG_LOCATION|g" /etc/services.d/readarr/run
 sed -i "s|/config/readarr|$CONFIG_LOCATION|g" /etc/cont-init.d/30-config
diff --git a/scrutiny/rootfs/run.sh b/scrutiny/rootfs/run.sh
index 706b3a921..30bc73d68 100644
--- a/scrutiny/rootfs/run.sh
+++ b/scrutiny/rootfs/run.sh
@@ -9,4 +9,5 @@ bashio::net.wait_for 8080
 #####################
 
 # search for local devices
+# shellcheck disable=SC2015
 scrutiny-collector-metrics run >/dev/null && bashio::log.info "Local Devices Added" || bashio::log.error "Local Devices Not Added"
diff --git a/tandoor_recipes/rootfs/etc/cont-init.d/99-run.sh b/tandoor_recipes/rootfs/etc/cont-init.d/99-run.sh
index d41d61e4e..cd24a7aca 100644
--- a/tandoor_recipes/rootfs/etc/cont-init.d/99-run.sh
+++ b/tandoor_recipes/rootfs/etc/cont-init.d/99-run.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/with-contenv bashio
 # shellcheck shell=bash
+# shellcheck disable=SC2155
 
 #####################
 # Export env values #
@@ -74,5 +75,5 @@ ln -s /config/addons_config/tandoor_recipes/mediafiles /opt/recipes
 ln -s /data/recipes/staticfiles /opt/recipes
 
 bashio::log.info "Launching app"
-cd /opt/recipes
+cd /opt/recipes || exit
 ./boot.sh
diff --git a/transmission/rootfs/etc/cont-init.d/19-config.sh b/transmission/rootfs/etc/cont-init.d/19-config.sh
index c75611dbe..bc9e25e07 100644
--- a/transmission/rootfs/etc/cont-init.d/19-config.sh
+++ b/transmission/rootfs/etc/cont-init.d/19-config.sh
@@ -4,13 +4,13 @@
 rm -rf /etc/cont-init.d/20-config || true
 
 declare CONFIG
-declare incomplete_bool
+#declare incomplete_bool
 declare download_dir
 declare incomplete_dir
 declare USER
 declare PASS
 declare WHITELIST
-declare HOST_WHITELIST
+#declare HOST_WHITELIST
 
 CONFIGDIR="/config/transmission"
 
@@ -37,7 +37,7 @@ fi
 
 if bashio::config.has_value 'customUI'; then
   CUSTOMUI=$(bashio::config 'customUI')
-  [ $CUSTOMUI != "standard" ] && sed -i "1a export TRANSMISSION_WEB_HOME=\"/$CUSTOMUI/\"" /etc/services.d/transmission/run
+  [ "$CUSTOMUI" != "standard" ] && sed -i "1a export TRANSMISSION_WEB_HOME=\"/$CUSTOMUI/\"" /etc/services.d/transmission/run
 
   # Enable transmission-web-control return to default UI
   if [ ! -f "/transmission-web-control/index.original.html" ]; then
@@ -59,15 +59,15 @@ CONFIG=$(<$CONFIGDIR/settings.json)
 
 # Permissions
 echo "Updating permissions"
-mkdir -p $download_dir
-chown abc:abc $download_dir
+mkdir -p "$download_dir"
+chown abc:abc "$download_dir"
 
 # if incomplete dir > 2, to allow both null and '', set it as existing
 if [ ${#incomplete_dir} -ge 2 ]; then
   echo "Incomplete dir set: $incomplete_dir"
   CONFIG=$(bashio::jq "${CONFIG}" ".\"incomplete-dir-enabled\"=true")
-  mkdir -p $incomplete_dir
-  chown abc:abc $incomplete_dir
+  mkdir -p "$incomplete_dir"
+  chown abc:abc "$incomplete_dir"
 else
   echo "Incomplete dir disabled"
   CONFIG=$(bashio::jq "${CONFIG}" ".\"incomplete-dir-enabled\"=false")
@@ -79,8 +79,8 @@ CONFIG=$(bashio::jq "${CONFIG}" ".\"download-dir\"=\"${download_dir}\"")
 CONFIG=$(bashio::jq "${CONFIG}" ".\"rpc-host-whitelist-enabled\"=false")
 CONFIG=$(bashio::jq "${CONFIG}" ".\"bind-address-ipv4\"=\"0.0.0.0\"")
 
-echo "${CONFIG}" >$CONFIGDIR/settings.json &&
-  jq . -S $CONFIGDIR/settings.json | cat >temp.json && mv temp.json $CONFIGDIR/settings.json
+echo "${CONFIG}" >"$CONFIGDIR"/settings.json &&
+  jq . -S "$CONFIGDIR"/settings.json | cat >temp.json && mv temp.json $CONFIGDIR/settings.json
 
 # USER and PASS
 ###############
@@ -99,21 +99,21 @@ CONFIG=$(bashio::jq "${CONFIG}" ".\"rpc-authentication-required\"=${BOOLEAN}")
 CONFIG=$(bashio::jq "${CONFIG}" ".\"rpc-username\"=\"${USER}\"")
 CONFIG=$(bashio::jq "${CONFIG}" ".\"rpc-password\"=\"${PASS}\"")
 echo "${CONFIG}" >$CONFIGDIR/settings.json &&
-  jq . -S $CONFIGDIR/settings.json | cat >temp.json && mv temp.json $CONFIGDIR/settings.json
+  jq . -S "$CONFIGDIR"/settings.json | cat >temp.json && mv temp.json "$CONFIGDIR"/settings.json
 
 # WHITELIST
 ###########
 
-CONFIG=$(<$CONFIGDIR/settings.json)
+CONFIG=$(<"$CONFIGDIR"/settings.json)
 WHITELIST=$(bashio::config 'whitelist')
 if bashio::config.has_value 'whitelist'; then
   BOOLEAN=true
   bashio::log.info "Whitelist set, no authentification from IP $WHITELIST"
 else
   BOOLEAN=false
-  sed -i "2 i\"rpc-whitelist-enabled\": false," $CONFIGDIR/settings.json
+  sed -i "2 i\"rpc-whitelist-enabled\": false," "$CONFIGDIR"/settings.json
 fi
 CONFIG=$(bashio::jq "${CONFIG}" ".\"rpc-whitelist-enabled\"=${BOOLEAN}")
 CONFIG=$(bashio::jq "${CONFIG}" ".\"rpc-whitelist\"=\"$WHITELIST\"")
-echo "${CONFIG}" >$CONFIGDIR/settings.json &&
-  jq . -S $CONFIGDIR/settings.json | cat >temp.json && mv temp.json $CONFIGDIR/settings.json
+echo "${CONFIG}" >"$CONFIGDIR"/settings.json &&
+  jq . -S "$CONFIGDIR"/settings.json | cat >temp.json && mv temp.json "$CONFIGDIR"/settings.json