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Full Discussion: a script to clone a dir tree, & overwrite the dir struct elsewhere?
Top Forums Shell Programming and Scripting a script to clone a dir tree, & overwrite the dir struct elsewhere? Post 90171 by simonb on Saturday 19th of November 2005 01:20:32 PM
Old 11-19-2005
Lightbulb
Hi Richard,

The tar command can be used to reproduce a directory tree with all the ownership and permissions preserved (though arbitary preserved ownership is only possible if you untar as root).

By combining with the find and xargs command it is possible to tar a directory tree with none of the files in it saved.

To make the compacted tree, use this command from the directory root you want to copy the tree from...

find . -type d -print0 | xargs -0 tar -f tree.tgz --no-recursion -zpc

This creates a file called tree.tgz. Copy this file to the directory you want to copy the tree to then just type...

tar zxf tree.tgz

I recommend testing this in an empty directory before letting it loose on a source tree just to make sure it creates the tree in the way you expect e.g. at the right directory level.
 

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LEARN ABOUT DEBIAN

blt_treedeletenode

Blt_TreeDeleteNode(3)					      BLT Library Procedures					     Blt_TreeDeleteNode(3)

__________________________________________________________________________________________________________________________________________________

NAME

       Blt_TreeDeleteNode - Deletes a node and its descendants.

SYNOPSIS

       #include <bltTree.h>

       Blt_TreeNode
       Blt_TreeDeleteNode(tree, node)

ARGUMENTS

       Blt_Tree       tree   (in)      Tree containing the node.

       Blt_TreeNode   node   (in)      Node to be deleted.
_________________________________________________________________

DESCRIPTION

       This procedure deletes a given node and all it descendants from a tree data object.

       The arguments are as follows:

       tree	 The tree containing the parent node.

       node	 Node  to  be  deleted.  The node and its descendant nodes are deleted.  Each node's data values are deleted also.   The reference
		 count of the Tcl_Obj is decremented.

       Since all tree objects must contain at least a root node, the root node itself can't be deleted unless the tree is released and	destroyed.
       Therefore you can clear a tree by deleting its root, but the root node will remain until the tree is destroyed.

RETURNS

       Always returns TCL_OK.  Errors generated in a notification callbacks are backgrounded (see Tcl_TreeCreateNotifyHandler).

EXAMPLE

       The following example deletes the root node.

	      Blt_TreeNode root;

	      root = Blt_TreeRootNode(token);
	      Blt_TreeDeleteNode(token, root);

NOTIFICATIONS

       Blt_TreeDeleteNode  can	trigger  tree notify events.  You can be notified whenever a node is deleted by using the Blt_TreeCreateNotifyHan-
       dler.  A callback routine is registered that will be automatically invoked whenever a node is deleted via Blt_TreeDeleteNode to the tree.

KEYWORDS

       tree, token

BLT
									2.4						     Blt_TreeDeleteNode(3)
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