PowerShell Add Parameters to Command / For-Each?-CodePudding

So, I'm in PowerShell and I can run a command like...

& .\curl.exe -vk -u <username:password> -F <some data> -F <some more data> --url <url here>

That all works fine, but sometimes there are more data entries to add, so more "-F"s to add. Like...

& .\curl.exe -vk -u <username:password> -F <some data> -F <some more data> -F <more data> -F <and another one> --url <url here>

I've tried creating foreach loops and building a long ScriptBlock but it doesn't seem to like that if I use the created string and Invoke-Command. Like this...

$Data = @()
$Data  = "some data"
$Data  = "more data"
$Data  = "even more data"

$Script = @()
$Script  = "& .\curl.exe -vk -u <username:password>"
foreach ($D in $Data) {
    $Script  = "-F $D"
}
$Script  = "--url <url here>"

$FinalScript = $Script -join ' '

Invoke-Command -ScriptBlock {$FinalScript}

Any help welcome. Sorry if this is not in the correct format... Newb! Oh and this is on PowerShell 5.1... because Windows!

CodePudding user response：

One option is to construct an array of -F <string> sequences you want to pass to curl and then use the @ splatting operator:

# define the data contents
$data = @(
  "some data"
  "more data"
  "additional data"
)

# prepend each data item with `-F`, store the resulting sequence in a new array
$Fparams = $data |ForEach-Object { '-F', $_ }

# invoke application and pass -F params with the @ splatting operator
& .\curl.exe -vk -u <username:password> @Fparams

CodePudding user response：

The values "some data", "more data" etc. contain spaces and so you need to use quotes around them.

As it is now, your code outputs:

& .\curl.exe -vk -u <username:password> -F some data -F more data -F even more data --url <url here>

Try

$Data      = "some data", "more data", "even more data"
$Script    = "& .\curl.exe -vk -u <username:password> @@F@@ --url <url here>"
$fSwitches = $(foreach ($D in $Data) { '-F "{0}"' -f $D }) -join ' '

$FinalScript = $Script -replace '@@F@@', $fSwitches

$FinalScript will now contain

& .\curl.exe -vk -u <username:password> -F "some data" -F "more data" -F "even more data" --url <url here>