4.3BSD-Reno/share/man/cat1/ln.0

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LN(1)			    UNIX Reference Manual			 LN(1)

NNAAMMEE
     llnn - make links

SSYYNNOOPPSSIISS
     llnn [--ss] _s_o_u_r_c_e__f_i_l_e [target_file]
     llnn [--ss] _s_o_u_r_c_e__f_i_l_e ...  [target_dir]

DDEESSCCRRIIPPTTIIOONN
     The llnn utility creates a new directory entry (linked file) which inherits
     the same modes as the orginal file.  It is useful for maintaining multi-
     ple copies of a file in many places at once - without the `copies'; in-
     stead, a link `points' to the original copy.  There are two types of
     links; hard links and symbolic links.  How a link `points' to a file is
     one of the differences between a hard or symbolic link.

     Option available:

     --ss    Create a symbolic link.

     By default llnn makes _h_a_r_d links.  A hard link to a file is indistinguish-
     able from the original directory entry; any changes to a file are effec-
     tive independent of the name used to reference the file.  Hard links may
     not refer to directories (unless the proper incantations are supplied)
     and may not span file systems.

     A symbolic link contains the name of the file to which it is linked.  The
     referenced file is used when an open(2) operation is performed on the
     link.  A stat(2) on a symbolic link will return the linked-to file; an
     lstat(2) must be done to obtain information about the link.  The
     readlink(2) call may be used to read the contents of a symbolic link.
     Symbolic links may span file systems and may refer to directories.

     Given one or two arguments, llnn creates a link to an existing file
     _s_o_u_r_c_e__f_i_l_e.  If _t_a_r_g_e_t__f_i_l_e is given, the link has that name;
     _t_a_r_g_e_t__f_i_l_e may also be a directory in which to place the link; otherwise
     it is placed in the current directory.  If only the directory is speci-
     fied, the link will be made to the last component of _s_o_u_r_c_e__f_i_l_e.

     Given more than two arguments, llnn makes links in _t_a_r_g_e_t__d_i_r to all the
     named source files.  The links made will have the same name as the files
     being linked to.

SSEEEE AALLSSOO
     rm(1), cp(1), mv(1), link(2), readlink(2), stat(2), symlink(2)

HHIISSTTOORRYY
     A llnn command appeared in Version 6 AT&T Unix.