10-17-2011
Quote:
Originally Posted by
jlliagre
You don't need to use (multiple) hard links or soft links. They are sometimes a very useful facility but you can live without them.
when they will be use full
---------- Post updated at 02:14 AM ---------- Previous update was at 02:11 AM ----------
Quote:
Originally Posted by
solaris_user
If you have hard link inside some directory and then you make some changes on file created with hard link than that file won't be affected because they don't share common address space so there is no sync between that two file. If you create file with symbolic link and the edit file cretaed with symbolic link original file on which that link points will be changed. If you delete symbolic link original file won't be deleted but if you delete original file than a symbolic link is also deleted because they share common virtual address space and sync is possible between that two files.
so you mean to say if i want to create a to a file then i want to change one and keep another as it is then i can use it
as a backup or some thing like that
pleas explain more about the concept it self
thank you dear
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ln(1) General Commands Manual ln(1)
Name
ln - link to a file
Syntax
ln [ -f ] [ -i ] [ -s ] name1 [name2]
ln [ -f ] [ -i ] [ -s ] name ... directory
Description
A link is a directory entry referring to a file. A file, together with its size and all its protection information may have several links
to it. There are two kinds of links: hard links and symbolic links.
By default makes hard links. A hard link to a file is indistinguishable 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 span file systems and may not refer to directories.
Given one or two arguments, creates a link to an existing file name1. If name2 is given, the link has that name. The name2 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 is
made to the last component of name1.
Given more than two arguments, makes links to all the named files in the named directory. The links made have the same name as the files
being linked to.
Options
-f Forces existing destination pathnames to be removed before linking without prompting for confirmation.
-i Write a prompt to standard output requesting information for each link that would overwrite an existing file. If the response from
standard input is affirmative, and if permissions allow, the link is done. The -i option has this effect even if the standard input is
not a terminal.
-s Creates a symbolic link.
A symbolic link contains the name of the file to which it is linked. The referenced file is used when an operation is performed on
the link. A on a symbolic link returns the linked-to file. An must be done to obtain information about the link. The call may be
used to read the contents of a symbolic link. Symbolic links may span file systems and may refer to directories.
See Also
cp(1), mv(1), rm(1), link(2), readlink(2), stat(2), symlink(2)
ln(1)