Experimental Physics and
Industrial Control System

Benjamin Franksen <[email protected]> · Thu, 21 Aug 2008 09:27:36 +0200

On Thursday 07 August 2008 21:10, Susanna Jacobson wrote:
> In VxWorks 5.2 and previous, there was an unsupported tool called
> 'shadow', a shell script that would set up a local directory structure
> with each file replaced by a symbolic link to the one in the dir being
> shadowed.  It was written by Roger Rohrbach to do exactly what David
> Dudley needs to do.  I don't know right off hand how someone would obtain
> it other than from an ancient VxWorks distribution.

On our linux machine we have a tool called 'lndir'. From the man page:

The lndir program makes  a  shadow  copy  todir  of  a  directory  tree
fromdir,  except  that  the shadow is not populated with real files but
instead with symbolic links pointing at the real files in  the  fromdir
directory tree.  This is usually useful for maintaining source code for
different machine architectures.  You create a  shadow  directory  con-
taining  links  to the real source, which you will have usually mounted
from a remote machine.  You can build  in  the  shadow  tree,  and  the
object files will be in the shadow directory, while the source files in
the shadow directory are just symlinks to the real files.

Cheers
Ben
-- 
"Programming = Mathematics + Murphy's Law" (E.W.Dijkstra)

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System