Powershell: apply multiple queries to a foreach on logs - regex

Question

I need to get the total data transferred value from multiple log files. The data value is shown under the total column in the bytes row.
It is also respectively delimited with a g, m, t or k to show gb/mb/tb/kb.
Total Copied Skipped Mismatch FAILED Extras
Bytes : 54.414 g 54.414 g 0 0 0 0
Currently I have this script which can go through all the files and extract the value between Bytes: and the g but I need to be able to add more queries and to the `foreach file and sum them all to one consistent value.
This is what I have currently but only outputs the kb.
$pattern = "(?<=.*Bytes :.*)\w.+?(?= g.*)"
$pattern1 = "(?<=.*Bytes :.*)\w.+?(?= m.*)"
$pattern2 = "(?<=.*Bytes :.*)\w.+?(?= k.*)"
Get-ChildItem "C:\Users\logs" -Filter "BFR*" | ForEach-Object {
Get-Content "C:\Users\logs\*.log" | where-Object {$_ -match $pattern } | ForEach-Object {
[double] ($matches[0])
} | Measure-Object -Sum | Select-Object -ExpandProperty sum
} | ForEach-Object {
Get-Content "C:\Users\logs\*.log" | where-Object {$_ -match $pattern1 } | ForEach-Object {
[double] ($matches[0])
} | Measure-Object -Sum | Select-Object -ExpandProperty sum
} | ForEach-Object {
Get-Content "C:\Users\logs\*.log" | where-Object {$_ -match $pattern2 } | ForEach-Object {
[double] ($matches[0])
} | Measure-Object -Sum | Select-Object -ExpandProperty sum
}

Answer 1

Here is one possibility. (Sorry #JamesC, it's a 1-liner :-)):
Get-ChildItem .\LogFolder\*.log |
ForEach-Object {$totalBytes = 0}{
Get-Content $_ | Select-String -Pattern "^Bytes\s+:\s+(?<size>\d+\.\d+) (?<units>[tgmk]).*$" |
Foreach-Object {
$size = $_.Matches.Groups[1].Value
switch ($_.Matches.Groups[2].Value)
{
t {$totalbytes += (1tb * $size)}
g {$totalbytes += (1gb * $size)}
m {$totalbytes += (1mb * $size)}
k {$totalbytes += (1kb * $size)}
}
}
} {"Total Bytes: $totalBytes"}