Macos – Mount Zip on OSX

The solution is pretty easy. If you want to do this for every file, recursively, use find. It will list all files and directories, descending into subdirectories too.

find . -type f -execdir zip '{}.zip' '{}' \;

Explanation:

• The first argument is the directory you want to begin in, .
• Then we will restrict it to find files only (-type f)
• The -execdir option allows us to run a command on each file found, executing it from the file's directory
• This command is evaluated as zip file.txt.zip file.txt, for example, since all occurrences of {} are replaced with the actual file name. This command needs to be ended with \;

Of course, find has more options. If instead you just want to stay in your current directory, not descending into subdirectories:

find . -type f -maxdepth 1 -execdir zip '{}.zip' '{}' \;

If you want to restrict it to certain file types, use the -name option (or -iname for case-insensitive matching):

find . -type f -name "*.txt" …

Anything else (including looping with for over the output of ls *) is pretty ugly syntax in my opinion and likely to break, e.g. on files with spaces in their name or due to too many arguments.

It is not possible since the files are encrypted http://blog.superuser.com/2011/04/02/compression-and-encryption-the-zip-years/ The files have to be decrypted.

If this is a one-time job, I suggest you put all these ZIP file in one directory, from the command line do a (assuming Windows) dir>doit.bat, then edit the batch file to unpack and pack everything from the command line.
Make sure you write your commands in such a way that the new file is created in another directory, so that the original one remains. If you use an editor with keyboard macros this is at most 15 minutes work. Test with the first two files in a separate batch file. If everything goes well, run the batch file.
Even if it takes two days to process all the ZIP files, who cares. If you have enough disk space and don't switch off your computer, you can do other things in the meantime.