PowerShell: defining multiple conditions in Where-Object

Question

I have a sample array and I try to create a rule which will filter our either of the 2 items that are present in the array.

Sample array:

$d_c_arr = @('idata', 'quanthouse', 'reuters', 'bloomberg', 'fidelity', 'nasdaq')

The items that I want to filter out are ' idata ' and ' quanthouse '.

The filtering rule should adapt to the situations where either both ' idata ' and ' quanthouse ' exist or only one of them is present in an array.

My attempt to define the rule:

$d_c_arr | Where-Object { $_ -notlike 'idata' -or $_ -notlike 'quanthouse' }

My expected output would be:

reuters
bloomberg
fidelity
nasdaq

However, the actual output is:

idata
quanthouse
reuters
bloomberg
fidelity
nasdaq

How to properly define the rule which would filter either of the 2 selected items in the array?

Answer 1

$d_c_arr | sls -pattern 'idata|quanthouse' -notmatch

[ LIVE ]

Your object are .net strings so can use select-string cmdlet.
select-string takes regex as its pattern.