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Top Forums UNIX for Dummies Questions & Answers change target of a symbolic link Post 302239401 by fimblo on Tuesday 23rd of September 2008 02:43:22 PM
Old 09-23-2008
Very interested to hear fpmurphy's explanation on how to change target of symlink without deleting the symlink first.

I normally delete the symlink and re-create it on one line, minimizing the time the link does not exist:

rm mysymlink ; ln -s mytargetfile mysymlink

I suppose you could write a little hack which does it in one go, but I've never heard of one which is included in standard POSIX systems...
 

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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)
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