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Creation:
The ln utility is used to create hard links and (with the -s
option) soft links, also known as symbolic links or symlinks. These two
kinds of links are very useful in UNIX-based operating systems.
Suppose that file1 already exists. A hard link, called file2, is created with the command:
$ ln file1 file2
Soft (or Symbolic) links are created with the -s option, as in:
$ ln -s file1 file3
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Differences
- In case of Hard Links both files have same inode number as compare to Soft Links which have different inode numbers.
- Symbolic links take no extra space on the filesystem (unless their names
are very long). They are extremely convenient, as they can easily be
modified to point to different places. - Unlike hard links, soft links can point to objects even on different filesystems, partitions, and/or disks and other media, which may or may not be currently available or even exist. In the case where the link does not point to a currently available or existing object, you obtain a dangling link.
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