Why does this display nothing?
$result = foreach($db in sqlps ls SQLSERVER:\\SQL\\MYSERVER\\Databases) {
foreach($group in $db.FileGroups) {
write #{Database=$group}
}
}
$result | % { $_.Database }
But this one works fine?
$result = foreach($db in sqlps ls SQLSERVER:\\SQL\\MYSERVER\\Databases) {
write #{Database=$db}
}
$result | % { $_.Database}
How do I fix it?
Edit:
It works ,but how display the result like 'NameMyBase' = 'Status'
Blockquote
Get-ChildItem SQLSERVER:\SQL\BACKUP1\ARCSERVE_DB\Databases | select FileGroups
Blockquote
I have just the column empty
Nevertheless "select -Expand FileGroups" doesn't work : Property "FileGroups-Expand" cannot be found.
The default output format of sqlps is text, so your command sqlps ls SQLSERVER:\\SQL\\MYSERVER\\Databases is generating a bunch of strings (which don't have a FileGroups property) rather than the objects you seem to expect.
Also, I think your path is missing the instance. \SQL\HOSTNAME\Databases should raise an error (or at least it did for me). I had to use \SQL\HOSTNAME\INSTANCE\Databases.
Try something like this:
Add-PSSnapin SqlServerProviderSnapin100
Get-ChildItem SQLSERVER:\SQL\MYSERVER\INSTANCE\Databases |
select -Expand FileGroups
The snap-in adds the SQLSERVER: provider, so you can use Get-ChildItem for accessing the child objects.
Edit: With SQL Server 2012 there should be a loadable sqlps module:
Import-Module 'sqlps' -DisableNameChecking
I don't have access to an SQL Server 2012, though, so I can't verify that.
Thanks very much it 's OK for acceess object even if i hva sql 2012
i much use command like '
Blockquote
sqlps ls SQLSERVER:\SQL\BACKUP1\ARCSERVE_DB\Databases; foreach ($Item in Get-ChildItem) { write #{$Item.Name=$Item.Status}}
Blockquote
This comman list what contains the root and not what contains the Databases
I would like to do a Set-Location but the cursor don't move it display always the same thing, the root
Blockquote
sqlps Set-Location SQLSERVER:\SQL\BACKUP1\ARCSERVE_DB\Databases; foreach ($Item in Get-ChildItem) { write #{$Item.Name=$Item.Status}}
Blockquote
The Set-Location works fine if i use the command not in my program c++ but with shell prompt. How can i use Set- Location in *ONE LIN*E with sqlps?
Related
I'd like to use a kinda analyzer which will install/import all the needed modules by the script before I run it on distant machine (which could not have it) ......
any idea ?
EDIT
Here's the case :
I'm on my dev machine, I'ved already installed lots of modules of all kind (dhcp, ntfs, remoting, register, etc.)
When I finally got my script (which is a function) to work, I can't be sure of what modules are used....
What I want is to write down, in the 'begin' section, the correct imports before I send my script on remote PCs; to be sure it's gonna run perfectly, you follow ?...
Is there a kinda a third party appplication which can scan my script and give me all needed modules ?
You could do something like this to get help in finding commands used and their source/module names. It's very unpolished, just trying to give the idea.
$scriptblock = {
Write-Host "Nothing here"
$files = Get-ChildItem c:\temp
Get-ADUser someuser
Test-NetConnection www.google.com
}
# Uncomment following lines and enter the path to your script file
# $scriptFile = "Path\to\some\scriptfile"
# $scriptblock = [scriptblock]::Create((Get-Content -raw -Path $scriptFile))
$ast = $scriptblock.Ast
$commands = $ast.FindAll( { $args[0] -is [System.Management.Automation.Language.CommandAst] }, $true)
$commandText = foreach ($command in $commands) {
$command.CommandElements[0].Extent.Text
}
$commandText |
Select-Object -Unique |
Sort-Object |
Select-Object #{
Label = "CommandName"
Expression = { $_ }
},
#{
Label = "Source"
Expression = {
(Get-Command $_).Source
}
}
Output
CommandName Source
----------- ------
Get-ADUser ActiveDirectory
Get-ChildItem Microsoft.PowerShell.Management
Test-NetConnection NetTCPIP
Write-Host Microsoft.PowerShell.Utility
Yeah, you could for example test if the module exists on that particular machine by trying to import it as follows
Try {
Import-Module dbaclone -ErrorAction stop
#ErrorAction required as failing to import is not a terminating action
} Catch {
Write-Verbose -Verbose "Failed to find dbaclone module - installing"
Install-Module dbaclone -AllowClobber -Force
Write-Verbose -Verbose "Installed!"
Import-Module dbaclone
}
Is there any command to list all functions I've created in a script?
Like i created function doXY and function getABC or something like this.
Then I type in the command and it shows:
Function doXY
Function getABC
Would be a cool feature^^
Thanks for all your help.
You can have PowerShell parse your script, and then locate the function definitions in the resulting Abstract Syntax Tree (AST).
Get-Command is probably the easiest way to access the AST:
# Use Get-Command to parse the script
$myScript = Get-Command .\path\to\script.ps1
$scriptAST = $myScript.ScriptBlock.AST
# Search the AST for function definitions
$functionDefinitions = $scriptAST.FindAll({
$args[0] -is [Management.Automation.Language.FunctionDefinitionAst]
}, $false)
# Report function name and line number in the script
$functionDefinitions |ForEach-Object {
Write-Host "Function '$($_.Name)' found on line $($_.StartLineNumber)!"
}
You can also use this to analyze the functions' contents and parameters if necessary.
Where your script is named things.ps1, something like...
cat ./things.ps1 | grep function
For MacOS/Linux or...
cat ./things.ps1 | select-string function
For Windows.
This is a built-in feature as shown in the PowerShell help files.
About_Providers
Similar questions have been asked before. So, this is a potential duplicate of:
How to get a list of custom Powershell functions?
Answers... Using the PSDrive feature
# To get a list of available functions
Get-ChildItem function:\
# To remove a powershell function
# removes `someFunction`
Remove-Item function:\someFunction
Or
Function Get-MyCommands {
Get-Content -Path $profile | Select-String -Pattern "^function.+" | ForEach-Object {
[Regex]::Matches($_, "^function ([a-z.-]+)","IgnoreCase").Groups[1].Value
} | Where-Object { $_ -ine "prompt" } | Sort-Object
}
Or this one
Get List Of Functions From Script
$currentFunctions = Get-ChildItem function:
# dot source your script to load it to the current runspace
. "C:\someScript.ps1"
$scriptFunctions = Get-ChildItem function: | Where-Object { $currentFunctions -notcontains $_ }
$scriptFunctions | ForEach-Object {
& $_.ScriptBlock
}
As for this...
Thanks, this is kind of what i want, but it also shows functions like
A:, B:, Get-Verb, Clear-Host, ...
That is by design. If you want it another way, then you have to code that.
To get name of functions in any script, it has to be loaded into memory first, then you can dot source the definition and get the internals. If you just want the function names, you can use regex to get them.
Or as simple as this...
Function Show-ScriptFunctions
{
[cmdletbinding()]
[Alias('ssf')]
Param
(
[string]$FullPathToScriptFile
)
(Get-Content -Path $FullPathToScriptFile) |
Select-String -Pattern 'function'
}
ssf -FullPathToScriptFile 'D:\Scripts\Format-NumericRange.ps1'
# Results
<#
function Format-NumericRange
function Flush-NumberBuffer
#>
This function will parse all the functions included in a .ps1 file, and then will return objects for each function found.
The output can be piped directly into Invoke-Expression to load the retuned functions into the current scope.
You can also provide an array of desired names, or a Regular Expression to constrain the results.
My use case was I needed a way for loading individual functions from larger scripts, that I don't own, so I could do pester testing.
Note: only tested in PowerShell 7, but I suspect it will work in older versions too.
function Get-Function {
<#
.SYNOPSIS
Returns a named function from a .ps1 file without executing the file
.DESCRIPTION
This is useful where you have a blended file containing functions and executed instructions.
If neither -Names nor -Regex are provided then all functions in the file are returned.
Returned objects can be piped directly into Invoke-Expression which will place them into the current scope.
Returns an array of objects with the following
- .ToString()
- .Name
- .Parameters
- .Body
- .Extent
- .IsFilter
- .IsWorkFlow
- .Parent
.PARAMETER -Names
Array of Strings; Optional
If provided then function objects of these names will be returned
The name must exactly match the provided value
Case Insensitive.
.PARAMETER -Regex
Regular Expression; Optional
If provided then function objects with names that match will be returned
Case Insensitive
.EXAMPLE
Get all the functions names included in the file
Get-Function -name TestA | select name
.EXAMPLE
Import a function into the current scope
Get-Function -name TestA | Invoke-Expression
#>
param (
$File = "c:\fullpath\SomePowerShellScriptFile.ps1"
,
[alias("Name", "FunctionNames", "Functions")]
$Names
,
[alias("NameRegex")]
$Regex
) # end function
# get the script and parse it
$Script = Get-Command /Users/royomi/Documents/dev/javascript/BenderBot_AI/Import-Function.ps1
$AllFunctions = $Script.ScriptBlock.AST.FindAll({$args[0] -is [Management.Automation.Language.FunctionDefinitionAst]}, $false)
# return all requested functions
$AllFunctions | Where-Object { `
( $Names -and $Names -icontains $_.Name ) `
-or ( $Regex -and $Names -imatch $Regex ) `
-or (-not $Names -and -not $Regex) `
} # end where-object
} # end function Get-Function
Suppose I have scripts AAA.ps1 and script BBB.ps1. Assume they are in the same location (directory).
Script BBB.ps1 defines a function BFunc which I want to invoke from AAA.ps1
How do I modify AAA.ps1 so that it can define-and-use BFunc?
As a test I have tried the following two commands in a script.
& "$PSScriptRoot\BBB.ps1"
get-childitem function:* | Select-Object Name | where { $_ -match "BFunc" }
If the above worked then I should see some output that BFunc is defined but nothing comes out.
Ah, sometimes it is too simple. It turns out that what PS expects is that BBB.ps1 be included into AAA.ps1. This means that the AAA.ps1 file could look like this:
. "$PSScriptRoot\BBB.ps1"
get-childitem function:* | Select-Object Name | where { $_ -match "BFunc" }
And that works!
I want to run a powershell with WinRM on serveral servers. I am using Invoke-Command with a script block.
I am reading from IIS and want to return a AppPool-Object, but I cannot access its properties - always empty.
#--imagine this code in a foreach block
$result = Invoke-Command -ComputerName $line.Servername -ScriptBlock {
Import-Module WebAdministration
$remotePoolName = Get-Item "IIS:\Sites\LeSite" #| Select-Object applictionPool
$pool = dir IIS:\AppPools | Where-Object { $_.Name -eq $remotePoolName.applicationPool }
return $pool
}
write-host $result.managedRuntimeVersion <- empty
Do I have to access it on the remote machine and return it as string ?
The problem here is, that you are referring to a property including get and set functions.
Using these functions outside of your server area results in nothing since the object is no longer in your server environment.
Using these functions inside your script block will work, because you use them on your server directly.
Greetz
I have many oracle forms in one folder and I want to compile those forms through frmcmp command in powershell script.
I have written a powershell script which is following
$module="module="
get-childitem "C:\forms\fortest" -recurse |
where { $_.extension -eq ".fmb" } |
foreach {
C:\Oracle\Middleware\Oracle_FRHome1\BIN\frmcmp $module $_.FullName userid=xyz/xyz#xyz Output_File=C:\forms\11\common\fmx\$_.BaseName+'.fmx'
}
but this one is not working. i am new in powershell.
but when I try to compile a single form through command prompt its working like following.
frmcmp module=C:\forms\src\xyz.fmb userid=xyz/xyz#xyz Output_File=C:\forms\11\common\fmx\xyz.fmx
When you want to use variables inside a string in PowerShell you have different options. To start with, you will always need to use " as opposed to ' to wrap the string, if you want variables in your string.
$myVariable = "MyPropertyValue"
Write-Host "The variable has the value $MyVariable"
The above code would yield the output:
The variable has the value MyPropertyValue
If you want to use a property of a variable (or any expression) and insert it into the string, you need to wrap it in the string with $(expression goes here), e.g.
$MyVariable = New-Object PSObject -Property #{ MyPropertyName = 'MyPropertyValue' }
# The following will fail getting the property since it will only consider
# the variable name as code, not the dot or the property name. It will
# therefore ToString the object and append the literal string .MyPropertyName
Write-Host "Failed property value retrieval: $MyVariable.MyPropertyName"
# This will succeed, since it's wrapped as code.
Write-Host "Successful property value retrieval: $($MyVariable.MyPropertyName)"
# You can have any code in those wrappers, for example math.
Write-Host "Maths calculating: 3 * 27 = $( 3 * 27 )"
The above code would yield the following output:
Failed property value retrieval: #{MyPropertyName=MyPropertyValue}.MyPropertyName
Successful property value retrieval: MyPropertyValue
Maths calculating: 3 * 27 = 81
I generally try to use the Start-Process cmdlet when I start processes in PowerShell, since it gives me the possibility of additional control over the process started. This means that you could use something similar to the following.
Get-ChildItem "C:\forms\fortest" -Filter "*.fmb" -recurse | Foreach {
$FormPath = $_.FullName
$ResultingFileName = $_.BaseName
Start-Process -FilePath "C:\Oracle\Middleware\Oracle_FRHome1\BIN\frmcmp.exe" -ArgumentList "module=$FormPath", "userid=xyz/xyz#xyz", "Output_File=C:\forms\11\common\fmx\$ResultingFileName.fmx"
}
You could also add the -Wait parameter to the Start-Process command, if you want to wait with compilation of the next item until the current compilation has completed.