CODEWITHSUNDEEP
powershell
NoChance
NoChance

Reputation: 5752

Looping through the result set

When I run this command:

$k = Get-Process | select Name -First 3

I'm getting this output:

Name
----
AESTSr64
ApplicationFrameHost
BtwRSupportService

I want to place each result in a separate variable of type string and get its length. I want to know how can I access individual rows returned.

I tried a foreach as follows:

foreach ($k in $three) {
  write $k
}

to get

Name
----
AESTSr64
ApplicationFrameHost
BtwRSupportService

I want to output only the result without the headers and the dashes and show the length of each string on the same line (when I convert the input using .ToString() I get empty string and zero length because each result is treated as an object).

I tried this, but it produced the wrong lengths:

foreach ($k in $three) {
  $t = $k | Out-String
  write ("{0} {1}", $t, $t.Length)
}

So how can I produce something like this:

AESTSr64                   08
ApplicationFrameHost       20
BtwRSupportService         18

Edit

One way to get the desired result, using the answer and notes below:

$three = Get-Process | select -First 3 | ForEach-Object Name
foreach ($k in $three) {
  [string]$c = "{0,-15} {1}" -f $k, $k.Length
  Write-Host $c
}

Upvotes: 6

Views: 13632

Answers (2)

Esperento57
Esperento57

Reputation: 17472

you can do it simply :)

   get-process | select Name, @{Name="NameLength";expression={$_.Name.length}} -first 3

if you want loop on result:

 $list=get-process | select Name, @{Name="NameLength";expression={$_.Name.length}} -first 3

 foreach ($item in $list)
 {
     write-host ("{0} {1}" -f $item.Name, $item.NameLength)
 }

Upvotes: 13

Burt_Harris
Burt_Harris

Reputation: 6874

I want to place each result in a separate variable of type string and get its length. I want to know how can I access individual rows returned.

You can store the result in a variable, but typically it won't have type string, it will be an array of Process objects. If you really want strings you could do this:

$p = get-process | select -first 3 | ForEach-Object name

But $p is still an array, so it's length will be 3! You can get the length first value as $p[0].length... Or you can break out the individual values like this:

$p1, $p2, $p3 = get-process | select -first 3 | ForEach-Object name

But note that with this last example, if more than 3 objects were to be returned, then p3 would be an array of all but the first two...

Upvotes: 2

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