Dfyjkt

(PS 101 newbie here)
I want to make a powershell script to import-csv a simple "folder,computername" file (generated by an app) where the folder will have 8 possible values (catchall,sun,mon,tue...sat). 1 value is a catch all and the other 7 are days of the week. I want to make a list of computer names from the catch all group and export them to 7 files for the days of the week so that the resulting files make the 7 days balanced (so count each day of the week to know which ones need more items). My app will import the 7 files and then later generate a new systems.csv file.

$computers = import-csv “Systems.csv”
$newsched = $computers | Group "folder"

This gets me the counts but I don't get how to take the results and use them for the loops.

I would then take the count of catchall and /7 it, then count how many each day of the week has a and loop where I export-csv the catch all elements to the appropriate day of the week file to keep them balanced as much as possible.

this is an OLD bit of code that takes an array of items and generates a set of equal-as-possible batches. if i was to rewrite it, instead of an array of strings, i would likely use a hashtable containing Key = $BatchNumber & Value = $ArrayOfItems. [grin]

however, it does demo one way to split a list into several smaller lists that are nearly the same size.

#$GroupList = "test1", "test2", "test3"
#$GroupList = "test1", "test2", "test3", "test4", "test5", "test6"
#$GroupList = "test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8"
$GroupList = "test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8", "test9", "test10", "test11"

$MaxPerBatch = 4
$Delimiter = ", " # one comma plus one space

$Batches = @()

Write-Output "----------"

$NextBatch = ""
$Remaining = $GroupList.Count
$Count = 0

foreach ($Group in $GroupList) 
 $Count++
 if (($Count -lt $MaxPerBatch) -and ($Remaining -gt 0)) 
 $NextBatch += $Group + $Delimiter
 
 else 
 $NextBatch += $Group
 $Batches += $NextBatch
 $NextBatch = ""
 $Count = 0
 
 $Remaining--
 if ($Remaining -eq 0) 
 $NextBatch = $NextBatch.TrimEnd($Delimiter)
 $Batches += $NextBatch
 




Write-Output "batch[es] of groups = $($Batches.Count)"
Write-Output ""
Write-Output "collection displayed below ..."
$Batches

Write-Output "++++++++++"

output ...

----------
batch[es] of groups = 3

collection displayed below ...
test1, test2, test3, test4
test5, test6, test7, test8
test9, test10, test11
++++++++++