appledouble

Generates appledouble files on any filesystem using copyfile.

This can be useful when you are working with programs that don't support extended attrubutes or filesystems/network shares that stop finder from automatically creating appledouble files while still allowing appledouble files to be manually uploaded.

This program uses Apple's copyfile library and thus should only function on macOS.

More information

• The copyfile manual can be accessed through man 3 copyfile or here.
• The appledouble format's wikipedia page

Usage

appledouble [-frRdavhA] file

Options

• -f
  • Overwrite any existing appledouble files
• -r
  • Follow symlinks
• -R
  • Attempt to convert existing appledouble files
• -d
  • Enables debug and dry run mode
• -a
  • Copy POSIX and ACL information in addition to extended attributes
• -v
  • Print the version number and exit
• -h
  • Print the help page and exit
• -A
  • Print the about page