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+====== How to identify and find Hardlinks? ======
+<code>
+> ls -l
+total 4
+-rw-r-r-    1 erik     erik            1 Feb 16 02:07 test
+</code>
+<code>
+> ln test test2
+> ls -l
+total 8
+-rw-r-r-    2 erik     erik            1 Feb 16 02:07 test
+-rw-r-r-    2 erik     erik            1 Feb 16 02:07 test2
+</code>
+Notice field 2 changed from 1 to 2 indicating that a hard link has been created. There are now 2 filenames pointing to the same data.
+To list all hardlinked files in the current directory:
+<code>
+> find . ! -type d -links +1 -ls | sort -n
+    4 -rw-r-r-   2 erik     erik            1 Feb 16 02:07 ./test
+    4 -rw-r-r-   2 erik     erik            1 Feb 16 02:07 ./test2
+</code>
+''Note:'' Use: ''ls -i'' to also list directories.
+To find all hardlink to the same inode:
+<code>
+> find / -xdev -inum 18587
+/home/erik/test/test
+/home/erik/test/test2
+</code>
+''Note:'' Hardlinks have to be located on the same file system, use ''df .'' to determine the current filesystem.