HardLinks and Softlinks Post: 302556440

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Top Forums Shell Programming and Scripting HardLinks and Softlinks Post 302556440 by ahmad.diab on Sunday 18th of September 2011 02:17:00 PM

09-18-2011

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Code:

you can control the permission by using "chmod" command , to create a soft link use "ln -s" command

---------- Post updated at 21:17 ---------- Previous update was at 21:15 ----------

Code:

Creating Hard and Symbolic Links
To create a symbolic link or a hard link, you use the same command name, In, which has the following syntax:

In [-fns] <source> [<target>]


Hard link is the default output of the ln command-that is, if you issue the ln command without the - s option, a hard link will be created.
 

In this command, <source> is the original file and <target> is the link that will be created and linked to the <source>. The options for the command are listed here:

-f (force). Link the file without questioning the user.

-n. If the <target> is an existing file, do not overwrite the content of the file. The -f option overrides this option.

-s. Create a symbolic link. The default is a hard link.

The hard links and symbolic links are compared in Table 4-2 

Table 4-2: Comparison of hard and soft links  Characteristic
 Hard Link
 Soft Link
 
Existence of original file
 You cannot create a hard link to a file that does not exist.
 You can create a symbolic link to a file that does not exist.
 
File systems
 A hard link cannot span file systems-that is, the link and the file it points to have to be in the same file system.
 A soft link can span file systems.
 
Kind of original file
 A hard link can only point to a file that is not a directory.
 A soft link can point to a file or a directory.
 
I-node
 A hard link has the same inode number as the file it points to.
 A soft link has a different inode from the file it points to.

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gtk2::cellrendererpixbuf

Gtk2::CellRendererPixbuf(3)				User Contributed Perl Documentation			       Gtk2::CellRendererPixbuf(3)

NAME

       Gtk2::CellRendererPixbuf

HIERARCHY

	 Glib::Object
	 +----Glib::InitiallyUnowned
	      +----Gtk2::Object
		   +----Gtk2::CellRenderer
			+----Gtk2::CellRendererPixbuf

METHODS

   cellrenderer = Gtk2::CellRendererPixbuf->new
PROPERTIES

       'follow-state' (boolean : readable / writable / private)
	   Whether the rendered pixbuf should be colorized according to the state

       'gicon' (Glib::Object::_Unregistered::GIcon : readable / writable / private)
	   The GIcon being displayed

       'icon-name' (string : readable / writable / private)
	   The name of the icon from the icon theme

       'pixbuf' (Gtk2::Gdk::Pixbuf : readable / writable / private)
	   The pixbuf to render

       'pixbuf-expander-closed' (Gtk2::Gdk::Pixbuf : readable / writable / private)
	   Pixbuf for closed expander

       'pixbuf-expander-open' (Gtk2::Gdk::Pixbuf : readable / writable / private)
	   Pixbuf for open expander

       'stock-detail' (string : readable / writable / private)
	   Render detail to pass to the theme engine

       'stock-id' (string : readable / writable / private)
	   The stock ID of the stock icon to render

       'stock-size' (Glib::UInt : readable / writable / private)
	   The GtkIconSize value that specifies the size of the rendered icon

SEE ALSO

       Gtk2, Glib::Object, Glib::InitiallyUnowned, Gtk2::Object, Gtk2::CellRenderer

COPYRIGHT

       Copyright (C) 2003-2008 by the gtk2-perl team.

       This software is licensed under the LGPL.  See Gtk2 for a full notice.

perl v5.12.1							    2010-07-05					       Gtk2::CellRendererPixbuf(3)