Shell – How to sort objects by third column in Powershell

I've a text file like this:

4108689096 2531 ./ssss/132432.odt
481446057 2293 ./abc/a.txt
3157353085 1096 ./dsjvbjf/c.docx
653380669 1824 ./bcd/x.avi

And I'd like to achieve in Powershell to sort the list by the third column, but Sort-Object seems to sort this list by the file name (by the first character after the last / in every row) whatever I do.

I'd like to achieve something like this:

481446057 2293 ./abc/a.txt
653380669 1824 ./bcd/x.avi
3157353085 1096 ./dsjvbjf/c.docx
4108689096 2531 ./ssss/132432.odt

So I'd like to sort by the third column as a string including ., / characters.

Edit #1: Some relevant code

# Gets a relative path based on a base and a full path (to file)
# 
# Usage: RelativePath <path to file> <base path>
# 
# Note: Specifying arguments is mandatory.
function global:RelativePath
{
    param
    (
        [string]$path = $(throw "Missing: path"),
        [string]$basepath = $(throw "Missing: base path")
    )

    return [system.io.path]::GetFullPath($path).SubString([system.io.path]::GetFullPath($basepath).Length + 1)
}

# Calculates CRC checksums for all files in the specified directory and writes
# the checksums to a file
# 
# Usage: CRCSumAll <path to folder to check> <file conatining checksums>
# 
# Note: Specifying arguments is mandatory.
function global:CRCSumAll
{
    param($inputpath,$outputfile)

    $allfiles=get-childitem $inputpath -rec | Where-Object {!($_.psiscontainer)} | Sort-Object Name

    new-item -force -type file $outputfile

    cd $inputpath
    foreach ($file in $allfiles)
    {
        $relfile=RelativePath $file.fullname $inputpath
        $relfile=$relfile -replace("\\","/")
        $relfile="./$relfile"
        cksum.exe $relfile | Out-File -Encoding OEM -Append $outputfile
    }
}

Edit #2: Solution

I realized what was the problem. I added the relative paths after sorting. So the correct code is:

function global:CRCSumAll
{
    param($inputpath,$outputfile)

    $allfiles=get-childitem $inputpath -rec | Where-Object {!($_.psiscontainer)} #| Sort-Object Name

    new-item -force -type file $outputfile

    cd $inputpath
    foreach ($file in $allfiles)
    {
        $relfile=RelativePath $file.fullname $inputpath
        $relfile=$relfile -replace("\\","/")
        $relfile="./$relfile"
        $relfile | Out-File -Encoding OEM -Append $outputfile
    }

    $sorted=Get-Content $outputfile | Sort-Object
    new-item -force -type file $outputfile
    $sorted | Out-File -Encoding OEM -Append $outputfile

    $forcksum=Get-Content $outputfile
    new-item -force -type file $outputfile
    $forcksum | Foreach-Object { cksum.exe $_ | Out-File -Encoding OEM -Append $outputfile}
}

Now I only have to clean up the code a little bit, because writing a file three times is really ugly. 🙂