Comparing Two Arrays & Get the Values Which Are Not Common

i wanted a small logic to compare contents of two arrays & get the value which is not common amongst them using powershell

example if

$a1=@(1,2,3,4,5)
$b1=@(1,2,3,4,5,6)

$c which is the output should give me the value "6" which is the output of what's the uncommon value between both the arrays.

Can some one help me out with the same! thanks!

2

7 Answers

PS > $c = Compare-Object -ReferenceObject (1..5) -DifferenceObject (1..6) -PassThru
PS > $c
6
4
$a = 1..5
$b = 4..8

$Yellow = $a | Where {$b -NotContains $_}

$Yellow contains all the items in $a except the ones that are in $b:

PS C:\> $Yellow
1
2
3
James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.