This is the easiest way I found to combine two ZIP files – or even multiple ZIPs – into one «Master ZIP-file» using macOS. It’s not super intuitive as it involves the Terminal.app, but once the basic principle is understood, it should be straightforward.
Merge two ZIP files into one
Once you have the ZIP files at hands in Finder, continue as follows:
- Open the
Terminal.app
(from Applications » Utilities,⌘CMD+⇧Shift+Uin Finder) - Type the following command, then drag’n’drop the ZIP files into the Terminal window
(this will add their file paths automatically):
zipmerge -iS /path/to/existing/Masterfile.zip /path/to/other/ZIP.zip- Press
↵Returnto merge the ZIP-files!
The command’s option -i asks before overwriting existing files, -S prevents overwriting identical files
Merge multiple ZIP files into one
In order to merge more than one ZIP file into an existing target ZIP, the same approach and command can be used – but any number of additional ZIP file paths are added at the end:
zipmerge -iS /path/to/Masterfile.zip /path/to/zip1.zip /path/to/zip2.zip …Creating new ZIP files using the macOS Terminal
Contrary to merging existing ZIP files, the macOS Terminal can also create new ZIP files containing folders and files.
zsh: command not found: zipmerge