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28 .\" @(#)unlink.2 8.1 (Berkeley) 6/4/93
36 .Nd remove directory entry
42 .Fn unlink "const char *path"
47 removes the link named by
49 from its directory and decrements the link count of the
50 file which was referenced by the link.
51 If that decrement reduces the link count of the file
53 and no process has the file open, then
54 all resources associated with the file are reclaimed.
55 If one or more process have the file open when the last link is removed,
56 the link is removed, but the removal of the file is delayed until
57 all references to it have been closed.
61 may not be a directory.
70 A component of the path prefix is not a directory.
71 .It Bq Er ENAMETOOLONG
72 A component of a pathname exceeded 255 characters,
73 or an entire path name exceeded 1023 characters.
75 The named file does not exist.
77 Search permission is denied for a component of the path prefix.
79 Write permission is denied on the directory containing the link
82 Too many symbolic links were encountered in translating the pathname.
84 The named file is a directory.
86 The named file has its immutable, undeletable or append-only flag set, see the
88 manual page for more information.
90 The parent directory of the named file has its immutable or append-only flag
93 The directory containing the file is marked sticky,
94 and neither the containing directory nor the file to be removed
95 are owned by the effective user ID.
97 An I/O error occurred while deleting the directory entry
98 or deallocating the inode.
100 The named file resides on a read-only file system.
105 points outside the process's allocated address space.
121 system call traditionally allows the super-user to unlink directories which
122 can damage the file system integrity.
123 This implementation no longer permits