Fixed missing double quotes using ShellCheck

recursive-dir-content.sh

@@ -31,7 +31,7 @@ usage () {
 dir_list () {
     echo "-Folder $1-"
 
-    for FILE in $1/* # Loop over the files in the folder given as first arg
+    for FILE in "$1"/* # Loop over the files in the folder given as first arg
     do
         echo "Scanning: $FILE"
 
@@ -39,11 +39,11 @@ dir_list () {
         if [[ -d "$FILE" ]]; then
         # If it is we loop over its content
             echo "$FILE is actually a directory !"
-            dir_list $FILE $2
+            dir_list "$FILE" "$2"
         else
             echo "$FILE is not a directory ! Adding it to the list"
             # Writing the file in the output list
-            echo $FILE >> $2
+            echo "$FILE" >> "$2"
         fi
     done
     echo "-----------------------------------------------"
@@ -62,10 +62,10 @@ else
         echo "$2 exists, backing it up to $2.old"
         if [ -f "$2.old" ]; then
             echo "$2.old exists already ! Deleting it"
-            rm $2.old
+            rm "$2".old
         fi
-        mv $2 $2.old
+        mv "$2" "$2".old
     fi
-    touch $2
-    dir_list $1 $2
+    touch "$2"
+    dir_list "$1" "$2"
 fi