questions with links Post: 29055

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Top Forums UNIX for Dummies Questions & Answers questions with links Post 29055 by ganti on Saturday 28th of September 2002 11:28:22 AM

09-28-2002

Registered User

I know in AIX 4.3.3
1)When you create a link in the same file-system (Hard link)

both the parent-file and linked file use the same i-node

You can think of a file as some space occupier on the Hard-disk

Now you have two links to that space.When you remove either

one of them one link is gone,The other is not affected

2) Since hard link uses same inode ,it's not possible across file-systems.that's why soft link

when you remove parent file all the linked files are of no use

They just show in ls

Hope this clears some doubts you are having

Cheers

ganti

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LEARN ABOUT PHP

symlink

SYMLINK(3)								 1								SYMLINK(3)

symlink - Creates a symbolic link

SYNOPSIS

       bool symlink (string  $target, string  $link)

DESCRIPTION

       symlink(3) creates a symbolic link to the existing $target with the specified name $link.

PARAMETERS

	      o $target
		- Target of the link.

	      o $link
		- The link name.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 5.3.0	|						    |
       |	|						    |
       |	|  This  function is now available on Windows plat- |
       |	| forms (Vista, Server 2008 or greater).	    |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES

       Example #1

	      Create a symbolic link

	      <?php
	      $target = 'uploads.php';
	      $link = 'uploads';
	      symlink($target, $link);

	      echo readlink($link);
	      ?>

NOTES

       Note

	       Windows users should note that this function will only work if the system you run PHP from is Windows Vista/Windows Server 2008	or
	      newer. Windows versions prior to that do not support symbolic links.

SEE ALSO

       link(3), readlink(3), linkinfo(3).

PHP Documentation Group 														SYMLINK(3)