diff --git a/buku b/buku
index 01c542d..ebe912c 100755
--- a/buku
+++ b/buku
@@ -51,16 +51,15 @@ except ImportError:
 
 # Globals
 addindex = None         # DB index to insert URL into
-openurl = None          # Open URL in browser
 showindex = None        # Index of bookmark to show
 showOpt = 0             # Modify show. 1: show only URL, 2: show URL and tag
 entry = None            # DB index to update or delete
 update = False          # Update a bookmark in DB
-debug = False           # Enable debug logs
 titleData = None        # Title fetched from a page
 titleManual = None      # Manually add a title offline
 iterations = 8          # Number of hash iterations to generate key
 jsonOutput = False      # Output json formatted result
+debug = False           # Enable debug logs
 pipeargs = []           # Holds arguments piped to the program
 _VERSION_ = 1.9         # Program version
 
@@ -597,7 +596,8 @@ def cleardb(conn, cur, index):
 
 def printdb(cur, index, empty=False):
     """Print bookmark details at index or all bookmarks if index is None
-    Print only bookmarks with empty title or tags if empty is True
+    Print only bookmarks with blank title or tags if empty is True
+    Note: URL is printed on top because title may be blank
 
     Params: cursor, index to print, flag to show only bookmarks with no title or tags
     """
@@ -748,7 +748,7 @@ def fetchopen(index):
     """
 
     try:
-        for row in cur.execute("SELECT URL FROM bookmarks WHERE id = ?", (int(index),)):
+        for row in cur.execute("SELECT URL FROM bookmarks WHERE id = ?", (index,)):
             url = unquote(row[0])
             browser_open(url)
             return
@@ -927,6 +927,7 @@ def decrypt_file():
     if dbhash != enchash:
         os.remove(dbpath)
         print("Decryption failed");
+        sys.exit(1)
     else:
         os.remove(encpath)
         print("File decrypted")
@@ -1049,13 +1050,13 @@ addarg('-k', '--decrypt', dest='decrypt', action='store_true',
        help='decrypt (unlock) database file')
 addarg('-l', '--encrypt', dest='encrypt', action='store_true',                      # DONE
        help='encrypt (lock) database file')
-addarg('-o', '--open', dest='openurl', type=int, metavar='N',
+addarg('-o', '--open', dest='openurl', type=int, metavar='N',                       # DONE
        help='open URL at DB index N in browser')
 addarg('-p', '--print', dest='showindex', type=int, metavar='N',
        help='show details of bookmark record at DB index N, N=0 shows all')
-addarg('-r', '--replace', nargs=2, dest='replace', metavar=('oldtag', 'newtag'),
+addarg('-r', '--replace', nargs=2, dest='replace', metavar=('oldtag', 'newtag'),    # DONE
        help='replace oldtag with newtag, delete oldtag if newtag=none')
-addarg('-t', '--iterate', dest='iterations', type=int, metavar='N',
+addarg('-t', '--iterate', dest='iterations', type=int, metavar='N',                 # DONE
        help='use N (> 0) hash iterations to generate key, for -k, -l')
 addarg('-x', '--format', dest='showOpt', metavar='N',
        help='modify -p behaviour, N=1: show only URL, N=2: show URL and tag')
@@ -1188,6 +1189,8 @@ except GetoptError as e:
 args = argparser.parse_args()
 
 titleManual = args.titleManual
+if args.iterations is not None:
+    iterations = args.iterations
 jsonOutput = args.jsonOutput
 debug = args.debug
 keywords = []
@@ -1212,7 +1215,7 @@ if args.decrypt == True:
         sys.exit(1)
     decrypt_file()
 
-# Initilize the database and get handles
+# Initialize the database and get handles
 conn, cur = initdb()
 
 # Add a record
@@ -1256,8 +1259,8 @@ if args.empty == True:
     printdb(cur, 0, True)
 
 # Open URL in browser
-if openurl != None:
-    fetchopen(openurl)
+if args.openurl is not None:
+    fetchopen(args.openurl)
 
 # Close the connection before exiting
 conn.close()