How to convert awk match to powershell command? - powershell

Question

I am currently running this command on a linux machine to get pods older than 1 day:
kubectl get pod | awk 'match($5,/[0-9]+d/) {print $1}'
I want to be able to run the same command in Powershell. How could I do it?
kubectl get pod output:
NAME READY STATUS RESTARTS AGE
pod-name 1/1 Running 0 2h3m
pod-name2 1/1 Running 0 1d2h
pod-name3 1/1 Running 0 4d4h
kubectl get pod | awk 'match($5,/[0-9]+d/) {print $1}' output:
pod-name2
pod-name3

Answer 1

You can use:
$long_running_pods=(kubectl get pod | Tail -n+2 | ConvertFrom-String -PropertyNames NAME, READY, STATUS, RESTARTS, AGE | Where-Object {$_.AGE -match "[1-9][0-9]*d[0-9]{1,2}h"})
$long_running_pods.NAME
This will give you all pods which have been running for more than one day.
Example:
$long_running_pods=(echo 'NAME READY STATUS RESTARTS AGE
pod-name 1/1 Running 0 1d2h
pod-name2 1/1 Running 0 0d0h' | Tail -n+2 | ConvertFrom-String -PropertyNames NAME, READY, STATUS, RESTARTS, AGE | Where-Object {$_.AGE -match "[1-9][0-9]*d[0-9]{1,2}h"})
$long_running_pods.NAME
will print:
pod-name

Answer 2

Awk might be a little more convenient in this case. You have to prevent the $split array from being spun out in the pipe before where-object. It turns out I can still reference the $split variable in the foreach-object.
' NAME READY STATUS RESTARTS AGE
pod-name 1/1 Running 0 2h3m
pod-name2 1/1 Running 0 1d2h
pod-name3 1/1 Running 0 4d4h' | set-content file
get-content file |
where-object { $split = -split $_; $split[4] -match '[0-9]+d' } |
foreach-object { $split[0] }
pod-name2
pod-name3