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OpenDarwin 7.2.1 - man page for ln (opendarwin section 1)

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LN(1)				   BSD General Commands Manual				    LN(1)

NAME
     ln, link -- make links

SYNOPSIS
     ln [-fhinsv] source_file [target_file]
     ln [-fhinsv] source_file ... target_dir
     link source_file target_file

DESCRIPTION
     The ln utility creates a new directory entry (linked file) which has the same modes as the
     original file.  It is useful for maintaining multiple copies of a file in many places at
     once without using up storage for the ``copies''; instead, 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 and symbolic link.

     The options are as follows:

     -f    If the target file already exists, then unlink it so that the link may occur.  (The -f
	   option overrides any previous -i options.)

     -h    If the target_file or target_dir is a symbolic link, do not follow it.  This is most
	   useful with the -f option, to replace a symlink which may point to a directory.

     -i    Cause ln to write a prompt to standard error if the target file exists.  If the
	   response from the standard input begins with the character 'y' or 'Y', then unlink the
	   target file so that the link may occur.  Otherwise, do not attempt the link.  (The -i
	   option overrides any previous -f options.)

     -n    Same as -h, for compatibility with other ln implementations.

     -s    Create a symbolic link.

     -v    Cause ln to be verbose, showing files as they are processed.

     By default, ln makes hard links.  A hard link to a file is indistinguishable from the origi-
     nal directory entry; any changes to a file are effectively independent of the name used to
     reference the file.  Hard links may not normally refer to directories 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, ln creates a link to an existing file source_file.  If
     target_file is given, the link has that name; target_file may also be a directory in which
     to place the link; otherwise it is placed in the current directory.  If only the directory
     is specified, the link will be made to the last component of source_file.

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

     When the utility is called as link, exactly two arguments must be supplied, neither of which
     may specify a directory.  No options may be supplied in this simple mode of operation, which
     performs a link(2) operation using the two passed arguments.

SEE ALSO
     link(2), lstat(2), readlink(2), stat(2), symlink(2), symlink(7)

COMPATIBILITY
     The -h, -i, -n and -v options are non-standard and their use in scripts is not recommended.
     They are provided solely for compatibility with other ln implementations.

STANDARDS
     The ln utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').

     The simplified link command conforms to Version 2 of the Single UNIX Specification
     (``SUSv2'').

HISTORY
     An ln command appeared in Version 1 AT&T UNIX.

BSD					December 30, 1993				      BSD
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