Getting only a repeating files from directory and subdirectories

I'm trying to do script for finding non-unique files.

The script should take one .csv file with data: name of files, LastWriteTime and Length. Then I try to make another .csv based on that one, which will contain only those objects whose combination of Name+Length+LastWriteTime is NON-unique.

I tried following script which uses $csvfile containing files list:

$csvdata = Import-Csv -Path $csvfile -Delimiter '|'

$csvdata |

    Group-Object -Property Name, LastWriteTime, Length |

    Where-Object -FilterScript { $_.Count -gt 1 } |

    Select-Object -ExpandProperty Group -Unique |

    Export-Csv $csvfile2 -Delimiter '|' -NoTypeInformation -Encoding Unicode

$csvfile was created by:

{

    Get-ChildItem -Path $mainFolderPath -Recurse  -File |

        Sort-Object $sortMode |

        Select-Object Name, LastWriteTime, Length, Directory |

        Export-Csv $csvfile -Delimiter '|' -NoTypeInformation -Encoding Unicode

}



(Get-Content $csvfile) |

    ForEach-Object { $_ -replace '"' } |

    Out-File $csvfile -Encoding Unicode

But somehow in another $csvfile2 there is only the one (first) non-unique record. Does anyone have an idea how to improve it so it can list all non-unique records?

edited Jan 20 at 10:35

Ansgar Wiechers

143k13129187

asked Jan 19 at 23:59

Maks

103

Select-Object -ExpandProperty Group -Unique -> Select-Object -ExpandProperty Group | Select-Object -Property * -Unique

– Ansgar Wiechers
Jan 20 at 0:04

Yay it work! Thank you I didnt consider using Select-Object to times. Good lesson for me!

– Maks
Jan 20 at 0:15

add a comment |

I'm trying to do script for finding non-unique files.

I tried following script which uses $csvfile containing files list:

$csvdata = Import-Csv -Path $csvfile -Delimiter '|'

$csvdata |

    Group-Object -Property Name, LastWriteTime, Length |

    Where-Object -FilterScript { $_.Count -gt 1 } |

    Select-Object -ExpandProperty Group -Unique |

    Export-Csv $csvfile2 -Delimiter '|' -NoTypeInformation -Encoding Unicode

$csvfile was created by:

{

    Get-ChildItem -Path $mainFolderPath -Recurse  -File |

        Sort-Object $sortMode |

        Select-Object Name, LastWriteTime, Length, Directory |

        Export-Csv $csvfile -Delimiter '|' -NoTypeInformation -Encoding Unicode

}



(Get-Content $csvfile) |

    ForEach-Object { $_ -replace '"' } |

    Out-File $csvfile -Encoding Unicode

But somehow in another $csvfile2 there is only the one (first) non-unique record. Does anyone have an idea how to improve it so it can list all non-unique records?

edited Jan 20 at 10:35

Ansgar Wiechers

143k13129187

asked Jan 19 at 23:59

Maks

103

Select-Object -ExpandProperty Group -Unique -> Select-Object -ExpandProperty Group | Select-Object -Property * -Unique

– Ansgar Wiechers
Jan 20 at 0:04

Yay it work! Thank you I didnt consider using Select-Object to times. Good lesson for me!

– Maks
Jan 20 at 0:15

add a comment |

I'm trying to do script for finding non-unique files.

I tried following script which uses $csvfile containing files list:

$csvdata = Import-Csv -Path $csvfile -Delimiter '|'

$csvdata |

    Group-Object -Property Name, LastWriteTime, Length |

    Where-Object -FilterScript { $_.Count -gt 1 } |

    Select-Object -ExpandProperty Group -Unique |

    Export-Csv $csvfile2 -Delimiter '|' -NoTypeInformation -Encoding Unicode

$csvfile was created by:

{

    Get-ChildItem -Path $mainFolderPath -Recurse  -File |

        Sort-Object $sortMode |

        Select-Object Name, LastWriteTime, Length, Directory |

        Export-Csv $csvfile -Delimiter '|' -NoTypeInformation -Encoding Unicode

}



(Get-Content $csvfile) |

    ForEach-Object { $_ -replace '"' } |

    Out-File $csvfile -Encoding Unicode

But somehow in another $csvfile2 there is only the one (first) non-unique record. Does anyone have an idea how to improve it so it can list all non-unique records?

edited Jan 20 at 10:35

Ansgar Wiechers

143k13129187

asked Jan 19 at 23:59

Maks

103

I'm trying to do script for finding non-unique files.

I tried following script which uses $csvfile containing files list:

$csvdata = Import-Csv -Path $csvfile -Delimiter '|'

$csvdata |

    Group-Object -Property Name, LastWriteTime, Length |

    Where-Object -FilterScript { $_.Count -gt 1 } |

    Select-Object -ExpandProperty Group -Unique |

    Export-Csv $csvfile2 -Delimiter '|' -NoTypeInformation -Encoding Unicode

$csvfile was created by:

{

    Get-ChildItem -Path $mainFolderPath -Recurse  -File |

        Sort-Object $sortMode |

        Select-Object Name, LastWriteTime, Length, Directory |

        Export-Csv $csvfile -Delimiter '|' -NoTypeInformation -Encoding Unicode

}



(Get-Content $csvfile) |

    ForEach-Object { $_ -replace '"' } |

    Out-File $csvfile -Encoding Unicode

But somehow in another $csvfile2 there is only the one (first) non-unique record. Does anyone have an idea how to improve it so it can list all non-unique records?

powershell csv unique get-childitem

edited Jan 20 at 10:35

Ansgar Wiechers

143k13129187

asked Jan 19 at 23:59

Maks

103

edited Jan 20 at 10:35

Ansgar Wiechers

143k13129187

asked Jan 19 at 23:59

Maks

103

edited Jan 20 at 10:35

Ansgar Wiechers

143k13129187

edited Jan 20 at 10:35

Ansgar Wiechers

143k13129187

edited Jan 20 at 10:35

Ansgar Wiechers

143k13129187

asked Jan 19 at 23:59

Maks

103

asked Jan 19 at 23:59

Maks

103

asked Jan 19 at 23:59

Maks

103

Select-Object -ExpandProperty Group -Unique -> Select-Object -ExpandProperty Group | Select-Object -Property * -Unique

– Ansgar Wiechers
Jan 20 at 0:04

Yay it work! Thank you I didnt consider using Select-Object to times. Good lesson for me!

– Maks
Jan 20 at 0:15

add a comment |

Select-Object -ExpandProperty Group -Unique -> Select-Object -ExpandProperty Group | Select-Object -Property * -Unique

– Ansgar Wiechers
Jan 20 at 0:04

Yay it work! Thank you I didnt consider using Select-Object to times. Good lesson for me!

– Maks
Jan 20 at 0:15

Select-Object -ExpandProperty Group -Unique -> Select-Object -ExpandProperty Group | Select-Object -Property * -Unique

– Ansgar Wiechers
Jan 20 at 0:04

Yay it work! Thank you I didnt consider using Select-Object to times. Good lesson for me!

– Maks
Jan 20 at 0:15

add a comment |

1 Answer
1

active

oldest

votes

You need to use -Property * -Unique to get a list of unique objects. However, you cannot use -Property and -ExpandProperty at the same time here, because you want the latter parameter to apply to the input objects ($_) and the former parameter to apply to an already expanded property of those input objects ($_.Group).

Expand the property Group first, then select the unique objects:

... |

Select-Object -ExpandProperty Group |

Select-Object -Property * -Unique |

...

edited Jan 20 at 10:52

answered Jan 20 at 10:33

Ansgar Wiechers

143k13129187

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

Expand the property Group first, then select the unique objects:

... |

Select-Object -ExpandProperty Group |

Select-Object -Property * -Unique |

...

edited Jan 20 at 10:52

answered Jan 20 at 10:33

Ansgar Wiechers

143k13129187

add a comment |

Expand the property Group first, then select the unique objects:

... |

Select-Object -ExpandProperty Group |

Select-Object -Property * -Unique |

...

edited Jan 20 at 10:52

answered Jan 20 at 10:33

Ansgar Wiechers

143k13129187

add a comment |

Expand the property Group first, then select the unique objects:

... |

Select-Object -ExpandProperty Group |

Select-Object -Property * -Unique |

...

edited Jan 20 at 10:52

answered Jan 20 at 10:33

Ansgar Wiechers

143k13129187

Expand the property Group first, then select the unique objects:

... |

Select-Object -ExpandProperty Group |

Select-Object -Property * -Unique |

...

edited Jan 20 at 10:52

answered Jan 20 at 10:33

Ansgar Wiechers

143k13129187

edited Jan 20 at 10:52

answered Jan 20 at 10:33

Ansgar Wiechers

143k13129187

answered Jan 20 at 10:33

Ansgar Wiechers

143k13129187

answered Jan 20 at 10:33

Ansgar Wiechers

143k13129187

add a comment |

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