diff --git a/scripts/client/setup.sh b/scripts/client/setup.sh
index 53a2990..d93e04e 100644
--- a/scripts/client/setup.sh
+++ b/scripts/client/setup.sh
@@ -1,5 +1,6 @@
 #!/bin/bash
 # @author Kevin Veen-Birkenbach
+# shellcheck disable=SC2015  # Deactivating bool hint
 # shellcheck source=/dev/null # Deactivate SC1090
 source "$(dirname "$(readlink -f "${0}")")/../base.sh" || (echo "Loading base.sh failed." && exit 1)
 
diff --git a/scripts/encryption/lock.sh b/scripts/encryption/lock.sh
index da108e2..533077f 100644
--- a/scripts/encryption/lock.sh
+++ b/scripts/encryption/lock.sh
@@ -3,6 +3,7 @@
 # Locks the data
 # @author Kevin Veen-Birkenbach [aka. Frantz]
 #
+# shellcheck disable=SC2015  # Deactivating bool hint
 # shellcheck source=/dev/null # Deactivate SC1090
 source "$(dirname "$(readlink -f "${0}")")/../base.sh" || (echo "Loading base.sh failed." && exit 1)
 info "Locking directory $DECRYPTED_PATH..." &&
diff --git a/scripts/encryption/unlock.sh b/scripts/encryption/unlock.sh
index 09670b2..1abe5e6 100644
--- a/scripts/encryption/unlock.sh
+++ b/scripts/encryption/unlock.sh
@@ -4,6 +4,7 @@
 # @author Kevin Veen-Birkenbach [aka. Frantz]
 #
 # shellcheck source=/dev/null # Deactivate SC1090
+# shellcheck disable=SC2015  # Deactivating bool hint
 source "$(dirname "$(readlink -f "${0}")")/../base.sh" || (echo "Loading base.sh failed." && exit 1)
 info "Unlocking directory $DECRYPTED_PATH..."
 if [ ! -d "$DECRYPTED_PATH" ]
diff --git a/scripts/image/backup.sh b/scripts/image/backup.sh
index 70284a2..f9171ef 100644
--- a/scripts/image/backup.sh
+++ b/scripts/image/backup.sh
@@ -14,17 +14,17 @@ while [ \! -b "$ifi" ]
 done
 while [ "$path" == "" ]
 	do
-		echo "Bitte Backupimagepfad+Namen zu $(pwd) eingeben:"
-		read path
+		echo "Bitte Backupimagepfad+Namen zu $PWD eingeben:"
+		read -r path
 		if [ "${path:0:1}" == "/" ]
 			then
-				ofi=$path.img
+				ofi="$path.img"
 			else
-				ofi=$(pwd)"/"$path.img
+				ofi="$PWD/$path.img"
 		fi
 done
 info "Input file: $ifi"
 info "Output file: $ofi"
 question "Please confirm by pushing \"Enter\". To cancel use \"Ctrl + Alt + C\""
-read bestaetigung
-dd if=$ifi of=$ofi bs=1M status=progress
+read -r bestaetigung
+dd if="$ifi" of="$ofi" bs=1M status=progress
diff --git a/scripts/image/chroot-to-pi.sh b/scripts/image/chroot-to-pi.sh
index 859e350..2566063 100644
--- a/scripts/image/chroot-to-pi.sh
+++ b/scripts/image/chroot-to-pi.sh
@@ -38,8 +38,8 @@
 mkdir -p /mnt/raspbian
 
 # mount partition
-mount -o rw ${1}2  /mnt/raspbian
-mount -o rw ${1}1 /mnt/raspbian/boot
+mount -o rw "$1""2"  /mnt/raspbian
+mount -o rw "$1""1" /mnt/raspbian/boot
 
 # mount binds
 mount --bind /dev /mnt/raspbian/dev/