Extract the values of a columm and put then into an array-CodePudding

I want to find out how many java PIDs are running in order to stop them, put the values into an array, run it inside a loop and kill each process

Therefore I use the command

$a=ps | Where-Object -Property ProcessName -EQ -Value 'Java'`

Which shows me the following result:

Handles  NPM(K)    PM(K)      WS(K) VM(M)   CPU(s)     **Id** ProcessName
-------  ------    -----      ----- -----   ------     -- -----------
    661      51   748504     421716  -282            **2008** java
    331      22   358464     135808  -525           **14060** java

But I am stuck regarding how to extract the Id column values , in order to loop them later

Any help would be appreciated,
Many thanks

CodePudding user response：

As Santiago Squarzon commented, you can directly pipe the output of Get-Process (alias ps) to Stop-Process:

ps Java | Stop-Process

In case you want to list the killed processes, you can use -PassThru:

ps Java | Stop-Process -PassThru

So in most cases you don't even need to write a loop.

If you still have a use case where you need to explicitly loop over the process IDs, you can do it as suggested by mclayton, using member-access enumeration:

$proc = ps Java
foreach( $pid in $proc.Id ) {
    # do something with $pid
    "PID: $pid"
}

# ...or even shorter:
(ps Java).Id.ForEach{
    "PID: $_"
}

CodePudding user response：

@Santiago Squarzon, @mclayton, @zett42 . Many thanbks for your time and colaboration