I want to compare two directories and copy the files that are not in
directory $A to directory $B. My initial try to see what I get back:

$A = Get-ChildItem -path C:\test1
$B = Get-ChildItem -path C:\test2

$C = Compare-Object $A $B

ForEach ($f in $C)
{
Write-Host $f
}



It Spit back this:

@{InputObject=test.txt; SideIndicator=<=}
@{InputObject=test2.txt; SideIndicator=<=}
@{InputObject=test3.zip; SideIndicator=<=}
@{InputObject=test4.txt; SideIndicator=<=}

How would I got about extracting the fullnames for each of those files?
After that I can pass it to a function for work to be done.

akcorr wrote:

> I want to compare two directories and copy the files that are not in
> directory $A to directory $B. My initial try to see what I get back:
>
> $A = Get-ChildItem -path C:\test1
> $B = Get-ChildItem -path C:\test2
>
> $C = Compare-Object $A $B

> How would I got about extracting the fullnames for each of those files?
> After that I can pass it to a function for work to be done.

I'd skip the foreach loop:

PS > $C|ForEach-Object{$_.InputObject}|ForEach-Object{$_.FullName}
C:\test2\bar.txt
C:\test1\foo.txt
PS >

That could also be more simply:
$C|ForEach-Object{($_.InputObject).FullName}

Hope that helps...

Marco

--
Microsoft MVP - Windows PowerShell
http://www.microsoft.com/mvp

PowerGadgets MVP
http://www.powergadgets.com/mvp

Blog:
http://marcoshaw.blogspot.com

Hi akcorr,

compare-Object $A $B | select InputObject

Make sure to read Dmitry's post on the -syncWindow parameter:
http://dmitrysotnikov.wordpress.com/...object-gotcha/



---
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

a> I want to compare two directories and copy the files that are not in
a> directory $A to directory $B. My initial try to see what I get back:
a>
a> $A = Get-ChildItem -path C:\test1
a> $B = Get-ChildItem -path C:\test2
a> $C = Compare-Object $A $B
a>
a> ForEach ($f in $C)
a> {
a> Write-Host $f
a> }
a> It Spit back this:
a>
a> @{InputObject=test.txt; SideIndicator=<=}
a> @{InputObject=test2.txt; SideIndicator=<=}
a> @{InputObject=test3.zip; SideIndicator=<=}
a> @{InputObject=test4.txt; SideIndicator=<=}
a> How would I got about extracting the fullnames for each of those
a> files? After that I can pass it to a function for work to be done.
a>

a> I want to compare two directories and copy the files that are not in

> a> directory $A to directory $B.

Another way to do this from PowerShell that might be interesting :

copy c:\test1\*.* c:\test2 -Exclude (dir c:\test2) -WhatIf

Greetings /\/\o\/\/

"Shay Levi" wrote:

> Hi akcorr,
>
> compare-Object $A $B | select InputObject
>
> Make sure to read Dmitry's post on the -syncWindow parameter:
> http://dmitrysotnikov.wordpress.com/...object-gotcha/
>
>
>
> ---
> Shay Levi
> $cript Fanatic
> http://scriptolog.blogspot.com
>
> a> I want to compare two directories and copy the files that are not in
> a> directory $A to directory $B. My initial try to see what I get back:
> a>
> a> $A = Get-ChildItem -path C:\test1
> a> $B = Get-ChildItem -path C:\test2
> a> $C = Compare-Object $A $B
> a>
> a> ForEach ($f in $C)
> a> {
> a> Write-Host $f
> a> }
> a> It Spit back this:
> a>
> a> @{InputObject=test.txt; SideIndicator=<=}
> a> @{InputObject=test2.txt; SideIndicator=<=}
> a> @{InputObject=test3.zip; SideIndicator=<=}
> a> @{InputObject=test4.txt; SideIndicator=<=}
> a> How would I got about extracting the fullnames for each of those
> a> files? After that I can pass it to a function for work to be done.
> a>
>
>
>

Definitely!

--
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

a>> I want to compare two directories and copy the files that are not in
a>>

>> a> directory $A to directory $B.
>>

o> Another way to do this from PowerShell that might be interesting :
o>
o> copy c:\test1\*.* c:\test2 -Exclude (dir c:\test2) -WhatIf
o>
o> Greetings /\/\o\/\/
o>
o> "Shay Levi" wrote:
o>

>> Hi akcorr,
>>
>> compare-Object $A $B | select InputObject
>>
>> Make sure to read Dmitry's post on the -syncWindow parameter:
>> http://dmitrysotnikov.wordpress.com/...object-gotcha/
>>
>> ---
>> Shay Levi
>> $cript Fanatic
>> http://scriptolog.blogspot.com
>> a> I want to compare two directories and copy the files that are not
>> in
>> a> directory $A to directory $B. My initial try to see what I get
>> back:
>> a>
>> a> $A = Get-ChildItem -path C:\test1
>> a> $B = Get-ChildItem -path C:\test2
>> a> $C = Compare-Object $A $B
>> a>
>> a> ForEach ($f in $C)
>> a> {
>> a> Write-Host $f
>> a> }
>> a> It Spit back this:
>> a>
>> a> @{InputObject=test.txt; SideIndicator=<=}
>> a> @{InputObject=test2.txt; SideIndicator=<=}
>> a> @{InputObject=test3.zip; SideIndicator=<=}
>> a> @{InputObject=test4.txt; SideIndicator=<=}
>> a> How would I got about extracting the fullnames for each of those
>> a> files? After that I can pass it to a function for work to be
>> done.
>> a>

On Tue, 17 Jun 2008 06:24:01 -0700, /\/\o\/\/ [MVP]
<oMVP@xxxxxx> wrote:

>a> I want to compare two directories and copy the files that are not in

>> a> directory $A to directory $B.

>
>Another way to do this from PowerShell that might be interesting :
>
>copy c:\test1\*.* c:\test2 -Exclude (dir c:\test2) -WhatIf
>
>Greetings /\/\o\/\/
>

To list the files that would be copied:

robocopy c:\test1 c:\test2 /l

Remove /l to actually copy the files....

:-)