John Rouillard wrote at about 23:44:48 +0000 on Monday, February 7, 2011:
 > On Mon, Feb 07, 2011 at 01:56:08PM -0600, Michael Stowe wrote:
 > > > On a side note, I *am* looking for a good way to cleanly list all the
 > > junction points so that I can periodically catalog them for potential
 > > future restore.
 > > >
 > > > Note I tried "dir /aL /s" but it doesn't give a very clean listing plus
 > > it seems to itself get hung up on junction loops. So, is there any good
 > > code (either cmd.exe, powershell, or cgywin) to find all junction points
 > > and list them in a simple 2-column like list
 > > > consisting of the "source" and the "target" (note standard cygwin 'find'
 > > or 'ls' won't help since it doesn't distinguish between
 > > > symlinks and junction points)
 > > 
 > > My first suggestion is what you've already tried:  "dir /aL"  The Windows
 > > command shell behaves quite differently than POSIX, so (for example)
 > > deleting a symlink to a directory in Windows actually deletes the
 > > *contents* not the symlink itself.  (Instead, you use rmdir to delete the
 > > symlink.  Yeesh.)
 > > 
 > > I'm not aware of a tool that gets past the looping issues, or even that
 > > has better output than dir (this doesn't mean they don't exist.)
 > 
 > junction.exe from sysinternals comes to mind as another junction
 > detection/creation tool. Not sure if it handles loops properly or not.

Unfortunately junction.exe also gets caught up in loops (due to
following junction points).


I don't understand why Microsoft can't do recursion 101.
As in:

find_junctions(dir) {
        for each 'entry' in 'dir' {
                if 'entry' is a junction, print junction
                else if 'entry' is a directory, find_junctions(dir)
        }
}

How hard would that be?

I don't know *anything* about PowerShell, but is that something that
would be easy or even possible to write in PowerShell?

(I could do it in bash with calls to junction.exe or dir.exe but I am
concerned that the speed would suffer if I had to call a function like
junction on *every* single directory entry recursively)

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