• How to convert symlink to regular file?
• Convert symlinks to hard links
• Convert absolute symlink to relative symlink - use symlink tool:
  • symlink -cr . and -t for dry run.
  • How change symlink path for many files?

• create a hard link to a symbolic link - work on linux, not portable.

• How to find all hard links to a given file

$ ls -li                    # get the inode number
find . -inum inode_number	# then find file with same number

Ruby

• How do I get the target of a symlink? - File.realpath("symlink_path")

see also:

• rsync - which can recreate file from simlink when copying
• NFS - which can only work with relative link
• Find duplicate - which can generate symlink for similar files