Merge pull request #635 from Fourdee/development

Minor - Corrected var names

automated install/basic-install.sh

@@ -158,27 +158,27 @@ verifyFreeDiskSpace() {
 
 	# 50MB is the minimum space needed (45MB install (includes web admin bootstrap/jquery libraries etc) + 5MB one day of logs.)
 	# - Fourdee: Local ensures the variable is only created, and accessible within this function/void. Generally considered a "good" coding practice for non-global variables.
-	local requiredFreeBytes=51200
-	local existingFreeBytes=$(df -Pk | grep -m1 '\/$' | awk '{print $4}')
+	local required_free_kilobytes=51200
+	local existing_free_kilobytes=$(df -Pk | grep -m1 '\/$' | awk '{print $4}')
 
 	# - Unknown free disk space , not a integer
-	if ! [[ "$existingFreeBytes" =~ ^([0-9])+$ ]]; then
+	if ! [[ "$existing_free_kilobytes" =~ ^([0-9])+$ ]]; then
 
 		whiptail --title "Unknown free disk space" --yesno "We were unable to determine available free disk space on this system.\n\nYou may override this check and force the installation, however, it is not recommended.\n\nWould you like to continue with the installation?" --defaultno --backtitle "Pi-hole" $r $c
 		local choice=$?
 		if (( $choice != 0 )); then
 
-			echo "non-integer value from existingFreeBytes ($existingFreeBytes)"
+			echo "non-integer value from existing_free_kilobytes ($existing_free_kilobytes)"
 			echo "Unknown free space, user aborted, exiting..."
 			exit 1
 
 		fi
 
 	# - Insufficient free disk space
-	elif [[ $existingFreeBytes -lt $requiredFreeBytes ]]; then
+	elif [[ $existing_free_kilobytes -lt $required_free_kilobytes ]]; then
 
-		whiptail --msgbox --backtitle "Insufficient Disk Space" --title "Insufficient Disk Space" "\nYour system appears to be low on disk space. pi-hole recomends a minimum of $requiredFreeBytes Bytes.\nYou only have $existingFreeBytes Free.\n\nIf this is a new install you may need to expand your disk.\n\nTry running:\n    'sudo raspi-config'\nChoose the 'expand file system option'\n\nAfter rebooting, run this installation again.\n\ncurl -L install.pi-hole.net | bash\n" $r $c
-		echo "$existingFreeBytes is less than $requiredFreeBytes"
+		whiptail --msgbox --backtitle "Insufficient Disk Space" --title "Insufficient Disk Space" "\nYour system appears to be low on disk space. pi-hole recomends a minimum of $required_free_kilobytes KiloBytes.\nYou only have $existing_free_kilobytes KiloBytes free.\n\nIf this is a new install you may need to expand your disk.\n\nTry running:\n    'sudo raspi-config'\nChoose the 'expand file system option'\n\nAfter rebooting, run this installation again.\n\ncurl -L install.pi-hole.net | bash\n" $r $c
+		echo "$existing_free_kilobytes is less than $required_free_kilobytes"
 		echo "Insufficient free space, exiting..."
 		exit 1