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LN.PRT
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1999-11-17
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LN (1)
NAME
ln - make links
SYNOPSIS
ln [ s ] source_file [ ] ln [ s ] source_file ... [ ]
DESCRIPTION
The ln utility creates a new directory entry (linked file)
which inherits the same modes as the orginal file. It is useful
for maintaining multiple copies of a file in many places at once
- without 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 or symbolic link.
Option available:
s - Create a symbolic link.
By default ln makes links. A hard link to a file is indistin-
guishable from the original directory entry; any changes to a
file are effective 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 re-
turn the linked-to file; an lstat (2) must be done to obtain in-
formation 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.
SEE ALSO
rm (1) , cp (1) , mv (1) , link (2) , readlink (2) , stat (2) ,
symlink (2)
HISTORY
A ln command appeared in