Merging vs Replacing Files in a Folder

Joined
Sep 6, 2008
Messages
869
Reaction score
0
Points
16
Your Mac's Specs
13" MBP - 2.7 Ghz, Intel Core i7, 8GB RAM.
Does it make any difference which one you choose? Does replacing files take up any more space?
 

Raz0rEdge

Well-known member
Staff member
Moderator
Joined
Jul 17, 2009
Messages
16,032
Reaction score
2,437
Points
113
Location
MA
Your Mac's Specs
2022 Mac Studio M1 Max, 2023 M2 MBA
You'll need to provide more details, but if you are replacing an existing file with another of the same size, then there is no space difference. If the newer file is bigger, it'll obviously take up more space.
 
Joined
May 21, 2012
Messages
11,293
Reaction score
1,582
Points
113
Location
Southern New England
Your Mac's Specs
2024 M4 14" MBP, iPhone 16 Pro Max, Watch S7 & Watch S9, AirPods Pro 1
I believe when you "merge" files into a folder that already has files with the same name, then it will leave the original copy, and add the new file, with a number "(1) addended to it? Replace, will just overwrite/replace the original file.
 

IWT


Joined
Jan 23, 2009
Messages
10,700
Reaction score
2,599
Points
113
Location
Born Scotland. Worked all over UK. Live in Wales
Your Mac's Specs
M2 Max Studio Extra, 32GB memory, 4TB, Sequoia 15.4.1 Apple 5K Retina Studio Monitor
I think Bob nailed it, so cudos To him.

To amplify, Merge simply means that new files will be added. Unaltered files will remain. New versions or updated files of those already present will be replaced.

Replace, replaces those unaltered files already present and adds the new updated or upgraded version.

Merge takes a less time, but if you are in any doubt, Use Replace.

Ian
 
Joined
Oct 16, 2010
Messages
18,150
Reaction score
1,899
Points
113
Location
Brentwood Bay, BC, Canada
Your Mac's Specs
2020 27" i9 5K nano iMac, 1TB(partitioned) SSD, GB, macOS 15.3.1 Sequoia
From the mothership herself...
Merge two folders with the same name
If you have two folders with identical names at two different locations, you can merge them into a single folder.

On your Mac, press and hold the Option key, then drag one folder to the location that contains a folder with the same name. In the dialog that appears, click Merge.

The Merge option appears only if one of the folders contains items that are not in the other folder. If the folders contain different versions of identically named files, the only options are Stop or Replace.



- Patrick
======
 
Joined
May 21, 2012
Messages
11,293
Reaction score
1,582
Points
113
Location
Southern New England
Your Mac's Specs
2024 M4 14" MBP, iPhone 16 Pro Max, Watch S7 & Watch S9, AirPods Pro 1
@pm-r, rsherid was asking about files within folders. Not folders with the same names.
 

Shop Amazon


Shop for your Apple, Mac, iPhone and other computer products on Amazon.
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
Top