Ical delete duplicates

Is there an easy way to delete duplicates in iCal? I have a bunch of doubles they may have come from an old back up or some where I dont know but either way I would love to get rid of them. thanks for your time
Schu

What does this have to do with the iPhone?
What happens when trying to delete them?

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Deleting duplicate entries in iCal?

How do I delete duplicate entries in iCal (identical entries on the same date)?

Todd,
I suspected a more serious problem because the answer was too easy.
Thousands of duplicate entries...Is this what happened?
According to, Mac OS X 10.4: Stay away from the SyncServices folder: As if it were a swarm of bees, you should stay away from the SyncServices folder in Mac OS X 10.4. Removing or modifying anything in it—or in subfolders within it—may cause unexpected issues. (This folder is located in your Application Support folder, in your Library folder, in your Home folder.)
Deleting or modifying things in the SyncServices folder may cause unexpected results such as:
• Duplicate contacts in Address Book or appointments in iCal.
• Data loss in Address Book or iCal.
Important: Any lost or duplicate data could propagate to other devices and computers via iSync and .Mac sync. This means data could be lost on other computers.If that is your problem, I suspect that without a backup, duplicate entry deletion will at best be tedious, and at worst fraught with frustration. You may be better off starting from scratch.
;~)

SOLUTION: iCal calendar duplicates created by iCloud

Two weeks after I migrated to Lion, I stopped syncing my iPad and iPhone through iTunes and turned on iCloud. I had 15 years of calendar data, and after the iCloud syncing, most of the entries were duplicated or even triplicated. It took me 5 days and about 5 hours with Apple tier 2 advisors to resolve the problem. The support communities had useful info, but it was scattered around. I am consolidating the useful stuff in this posting so that it may help others.
1. The important thing to understand about iCloud is that it considers itself the "master repository". Its primary purpose is to backup your data, but it cannot distinguish your data if it originates from multiple sources. My 3 devices (mac, iPad, iPhone) synced fine via iTunes. But when I connected the 3 devices to iCloud, iCloud did not continue from where iTunes left off. Instead, the calendars on the 3 devices were Merged in iCloud, resulting in duplicates. However, many repeating events (events that spanned multiple days) were not duplicated.
2. At this point, your calendar is corrupted. Don't try to fix a calendar while you are connected to iCloud (see why below). Your best choice is to delete the calendar from all platforms and then restore your pre-iCloud calendar from your archive or from Time Machine. First, disconnect your calendar on ALL devices (Apple->Preferences->iCloud->uncheck the calendar). This will delete calendar from those devices. Then go into iCloud and delete the calendar there (click the Edit button at the top of the calendar list and then click the minus button).
3. Restore your pre-iCloud calendar to your mac. Because this is pre-iCloud, all your calendars should be under the "On my Mac" section. Go into Apple->Preferences->iCloud->check the calendar. iCloud will start syncing immediately and your iCal will say "iCal - Updating" in the title bar. When it stops Updating, check your data. You will see that all of your calendars in the Mac are now in the iCloud section.
4. Add a test event and see how it updates on iCloud. Now go to your iPad and iPhone. If you did step 2 correctly, both of their calendars should be empty. Turn iCloud back on on those devices through Preferences, and the data will sync to your devices. By default, the mobile devices only sync I think 2 weeks of data. I discovered that even tho I could get 15 years of data to sync to my iPad, the iPad could not display it. So I am going to have to tolerate having only a short period of data on my mobile devices and keep the whole archive only on my mac.
TIPS I LEARNED
Backup your calendar and address book BEFORE you go to iCloud. Use the File->Export menus to export an archive of the whole calendar (.icbu) or whole address book (.abbu).
In addition, you might want to export each of your calendars and address book groups as individual .ics files and .vcf files. This way, if you need to combine calendars, you can simply import a .ics file into an existing calendar in iCal.
Why can't you delete duplicates while you are connected to iCloud? I tried to do that, and just when I got close to the very end, iCloud seemed to get confused, and then it suddenly put all the duplicates back. Several hours wasted.
If you delete the calendar from iCloud and then try to restore it to your mac, it is very important to disconnect iCloud first. Otherwise, iCloud syncs the deletion back to the mac and deletes the calendar you just restored. Just remember, everytime you disconnect from iCloud, it deletes the calendar on your device. So the sequence must be: disconnect iCloud first, and THEN restore. When you turn iCloud back on, iCloud sees this as a whole new calendar.
I was used to the replication idea of Lotus Notes, where the newest time stamp determined which event to keep in a sync conflict. iCloud does not work that way. It doesn't use timestamps and has no idea of latest event. It just merges everything. When you first turn iCloud on, if it asks you if you want to merge your Address Book, realize that iCloud will merge at the field level. So for a contact, if you made changes in work phone on two devices, that contact will now have 2 work phone fields.
How to restore a Lion calendar from Time Machine: In Finder, go to the Go menu. Press the option key, and Library shows up in the dropdown menu. Select Library and then open the Calendars folder. Copy everything in it to a safe place and then delete the originals. Now, open Time Machine, and it will navigate to that hidden folder. Restore everything in the Calendars folder.
How to restore a Snow Leopard calendar from Time Machine: If you have since migrated to Lion, use the method above to get to the Calendars folder and clear it out. Now open Time Machine and go to the Library->Calendars folder and restore everything in that folder.

To restore the calendar from before iCloud installation, after you delete the Calendars folder information, inside of iCal, you can do a File-Import from the iCal backup that is taken by iCloud in the library/Calendars folder. I found one files of these in each of the machines I restored from. The file name format is iCal yyyy-mm-dd hh/mm/ss.icbu where hh is GMT time.
Now I am getting rid of iCloud for calendars and contacts, and am going to try Google Sync.

I deleted duplicate files with MacKeeper and now my firefox only shows text. I have reinstalled firefox, java, and checked all of my settings. Any ideas? Safari works fine.

I deleted duplicate files with MacKeeper and now my firefox only shows text. I have reinstalled firefox, java, and checked all of my settings. Any ideas? Safari works fine.

I opened iCal back up, all the dates were blank, so i started to type events into a date.
As soon as I started to double click a date to type an event, magically all the events in all the months reappeared.
I'm still puzzled why it acted this way and if I did delete something that caused it to act this way.

How can i delete duplicates from my itunes account?

At "View" I chose "Show duplicates."
Now what do I do to delete duplicates quickly without having to delete each one separately?
THanks

Hello, singinheart.
Thank you for the question. Since you have already identified the duplicate media you just have a couple more steps to go. This article outlines the remainder of the steps in order to mass delete the duplicates.
How to find and remove duplicate items in your iTunes library
http://support.apple.com/kb/ht2905
Cheers,
Jason H.

How do you delete duplicate tracks off your playlist?!

How do you delete duplicate tracks off your playlist - everytime I connect my hard-drive it adds another of every single track - argh!!!!
I remember there being a 'delete duplicate tracks' option on a much older version of itunes - is this still available and if not if you opt for the 'consolidate library' option will this automatically save to you computer as I have too much music for my laptops memory capacity! On top of that how can I stop this issue from contantly re-occuring everytime I connect my hard-drive?! Apologies if im being thick here.... xX*laura*Xx

You are doing something wrong, iTunes doesn't add tracks to the library unless you ask it to, so there is a problem somewhere in your workflow which is creating the duplicates. For example, having iTunes set up to "Copy files to the iTunes Media folder when adding to library" and then repeatedly adding in a folder from an external drive would do it.
Once you've worked out how to stop creating new duplicates you can look at the issue of deduping what you already have. See this recent post for some thoughts and a script that may prove useful.
tt2

How do you delete duplicate songs in your library without having to delete each song individually??

How do you delete duplicate songs in your library without having to delete each song individually?

mauijiminar wrote:
Go to iTunes, select view and click show duplicates. Hold control and A ( select all) and then delete.
Not a good idea! The "show duplicates" feature shows "all" duplicate tracks, but you only want to delete the "extra" copies, not the "originals".
I've written a script called DeDuper which can help remove unwanted duplicates. See this thread for background, including how to delete the extra tracks manually if you prefer.
tt2

How do I delete duplicate songs, but keep a link in their original albums to the single copy of the song left, so it will play in each album in sequence as if it were still there?

Greetings!
After importing my 300 or so CDs into iTunes, I found I have tons of duplicate songs.
Example: I have a song that came in a original album, then in again in a "Greatest Hits" album, then again in a "Hits of the 80's" album, and again in a soundtrack album. I have now have 4 copies of the exact same song.
How do I delete duplicate songs, but keep a link in their original albums back to the single copy of the song left, so it will play in each album in sequence as if it were still there?
I don't think this currently exists, but as my library keeps growing the duplicates keep growing. It would be nice if Apple sees this and adds a way to link songs to multiple albums.
I don't want to create a custom playlist for every album that has a duplicate song or two (I'd have dozens of playlists) - thought about fixing it that way but not really practical.

To my knowledge, there is no way of doing what you want. The only workaround is to create playlists for the other albums containing the track, but that isn't practical for most people.
You could provide Apple with feedback here: http://www.apple.com/feedback/itunesapp.html

How do you delete duplicate photos in the photo section of your iPad?

How do you delete duplicate photos in the photo section of your iPad? My iPad has duplicated n tripled my photos n want let me delete them. I can delete photos from any other section but not in photos, this is taken up all my memory. Help!!

The links below have instructions for deleting photos.
iOS and iPod: Syncing photos using iTunes
http://support.apple.com/kb/HT4236
iPad Tip: How to Delete Photos from Your iPad in the Photos App
http://ipadacademy.com/2011/08/ipad-tip-how-to-delete-photos-from-your-ipad-in-t he-photos-app
Another Way to Quickly Delete Photos from Your iPad (Mac Only)
http://ipadacademy.com/2011/09/another-way-to-quickly-delete-photos-from-your-ip ad-mac-only
How to Delete Photos from iPad
http://www.wondershare.com/apple-idevice/how-to-delete-photos-from-ipad.html
How to: Batch Delete Photos on the iPad
http://www.lifeisaprayer.com/blog/2010/how-batch-delete-photos-ipad
(With iOS 5.1, use 2 fingers)
How to Delete Photos from iCloud’s Photo Stream
http://www.cultofmac.com/124235/how-to-delete-photos-from-iclouds-photo-stream/
 Cheers, Tom

How do I delete duplicate songs from my library that have been automaticly downloaded from itunes?

How do you delete duplicate songs from an iphone 3gs? I did the automaticly download song feature when doawloading from my CPU and now there are 11 songs that no matter what I do will not come off my phone. I have tried everything. Also how do you shut off this automatic download feature?

Hello momoandfam,
Welcome to Apple Support Communities.
Take a look at the article linked below, it’ll answer your questions about finding and deleting duplicate tracks in your iTunes library.
Find and remove duplicate items in your iTunes library - Apple Support
Take care,
-Jason

Is there a way to automatically detect and delete duplicate photos in a library

I just imported a load of photos into my main iPhoto '11 Library from several older MAC's Photo Libraries. Despite repeatedly using the "Don't Import Duplicate Photos" dialogue box, I have many duplicate photos. Is there a way to automatically detect and delete Duplicate Photos?
I also have iPhoto Library Manager installed on my MAC, but cannot seem to locate on it anything that would do this.
I have over 4,000 photos, so would really appreciate some help here! Thanks in advance...

duplicate annihilator - http://www.brattoo.com/propaganda/
And NEVER import an iPhoto library into another iPhoto library - doing so des not work and creates massive duplication
if you still have all of the original iPhoto libraries I recommend you drag the bad one you created to the desktop (delete it later when everythin has successfully been completed) and start over usin iPhoto Library Manager - http://www.fatcatsoftware.com/iplm/ - to merge the libraries
LN

How to delete duplicate music in itunes

I have been downloading a lot of my old CD's and have found I have a lot of duplicate songs from a variety of my album sets...how can I delete them so I only have one of each one?
thanks!
Jan

Dupin may be what you need. If you have the same song as part of different albums then, in my opinion, these aren't really duplicates. Personally I wouldn't throw away some of the tracks on the Beatles "White Album" because I also have them on the "Blue Album".
For some more thoughts, including tips on how to manually delete duplicates if you have the patience, see this post. It's written from a PC perspective so you may need to use Option or Cmd instead of Shift or Ctrl.
tt2

How to delete duplicate rows in a table

hai,
i have a table which consists of hunderds of records and contains duplicate records also. how can i delete duplicate records.
thanks
ravi

This maybe a litle bit fast for deletion:-
delete from emp where rowid in (
2 SELECT rowid FROM emp
3 group by rowid,empno,ename,job
4 minus
5 SELECT min(rowid) FROM emp
6 group by empno,ename,job);

How to delete duplicate photos in iphoto

working in iphoto and want to delete duplicates that were created when I used migration assist to import the iphoto library to new machine. it duplicated all of my pictures. Using iphoto 9.1.3

Did you import one Library to another? That's the usual cause of this.
If you still have the original library the simple solution is to just trash the damaged Library and do it again. This time don't import the LIbrary, just open it.
Other than that For dealing with duplicates in iPhoto check out Duplicate Annihilator
Regards
TD

HOW TO DELETE DUPLICATE ELEMENT IN A VECTOR

Hi everybody!
If I've a vector like this vectA={apple,orange,grape,apple,apple,banana}
and I want final result be vectB={apple,orange,grape,banana}.
How should I compare each element in vectA and delete duplicate element. Like here duplicated element is apple. Only one apple remain in the vectB.
Any help,
Thanks.

Hello all. Good question and good answers, but I would like to elaborate.
To begin with, you specifically asked to map the following:
{apple,orange,grape,apple,apple,banana} ==> {apple,orange,grape,banana}
Both of cotton.m's solutions do NOT do this, unfortunately. They are both useful in particular cases though, so think about what you're trying to do:
cotton.m's first solution is best if order does not matter. In fact, as flounder first stated, whenever order doesn't matter, your most efficient bet is to use a Set instead of a List (or Vector) anyways.
Set vectB = new HashSet(vectA);This code maps to {banana, orange, grape, apple}, because HashSets are "randomly" ordered.
cotton.m's second solution is good if you want to impose NEW ordering on the List.
Set vectB = new TreeSet(vectA);This code maps to {apple, banana, grape, orange}, because TreeSet uses alphabetical-order on Strings by default.
java_2006, your solution is the most correct, but it's a little verbose for my taste :)
more importantly, the runtime-efficiency is pretty bad (n-squared). calling Vector.contains performs (at worst) n comparisons; you're going to call it n times! Set.contains usually performs 2 comparisons (constant, much better), so I suggest you USE a Set to do the filtering, while still sticking with your good idea to use a List. When the ordering is "arbitrary" (so can't use TreeSet) but still relevant (so can't use HashSet), you're basically talking about a List.
I think saving A LOT of time is worth using A LITTLE extra space, so here, let's save ourself some runtime, and some carpal-tunnel.
import java.util.*;
class Foo {
     public static void main(String[] args) {
          String[] fruits = {"apple","orange","grape","apple","apple","banana"};
          List     l = Arrays.asList(fruits),
               m = filterDups(l);
          System.out.println(m);
     // remember, both of the following methods use O(n) space, but only O(n) time
     static List filterDups(List l) {
          List retVal = new ArrayList();
          Set s = new HashSet();
          for (Object o : l)
               if (s.add(o))
                    retVal.add(o);     // Set.add returns true iff the item was NOT already present
          return retVal;
     static void killDups(List l) {
          Set s = new HashSet();
          for (Iterator i = l.iterator(); i.hasNext(); )
               if (! s.add(i.next()))
                    i.remove();
     // honestly, please don't use Vectors ever again... thanks!
     // if you're going to be a jerk about it, and claim you NEED a Vector result
     // then here's your code, whiner
     public static void mainx(String[] args) {
          String[] fruits = {"apple","orange","grape","apple","apple","banana"};
          List l = Arrays.asList(fruits);
          Vector v = new Vector(l);
          killDups(v);
          System.out.println(v);
}

Ical delete duplicates

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