I've got a function which works fine.
It pulls the first character of the firstname and the whole lastname from a text box in a PowerShell GUI and then it creates a sAMAccountName from both.
Now I need only the first 8 characters from the generated sAMAccountName.
Here is the function
Function Set-sAMAccountName {
Param([Switch]$Csv=$false)
if(!$Csv)
{
$GivenName = $txtFirstName.text
$Surname = $txtLastName.text
}
else{}
Switch($XML.Options.Settings.sAMAccountName.Style | Where{$_.Enabled -eq $True} | Select -ExpandProperty Format)
{
"FirstName.LastName" {"{0}.{1}" -f $GivenName,$Surname}
"FirstInitialLastName" {"{0}{1}" -f ($GivenName)[0],$Surname}
"LastNameFirstInitial" {"{0}{1}" -f $Surname,($GivenName)[0]}
Default {"{0}.{1}" -f ($GivenName)[0],$Surname}
}
}
Any ideas?
Thx a lot in advance
Substring works like that:
you pass the index of where you want to start
you pass the index of where you want to end the reading of the substring (if your not passing anything it will go until the end of the string's length)
so in your case it will be start reading at index 0 end reading at index 8:
$str = "a simple string"
$newString = $str.Substring(0,8)
I really recommend to read about string manipulation here
Okay I got it now!
I've added the -and condition to check the length of the sAMAccountName and said -lt 8 and it's working now. The sAMAccountName is now 8 characters long.
This was the code before:
$txtName_TextChanged={
Write-Verbose "Creating required account fields"
if ($XML.Options.Settings.DisplayName.Generate -eq $True) {$txtDN.Text = Set-DisplayName}
if ($XML.Options.Settings.sAMAccountName.Generate -eq $True) {$txtsAM.Text = (Set-sAMAccountName)}
if ($XML.Options.Settings.UPN.Generate -eq $True) {$txtUPN.Text = Set-UPN}
}
And after the change:
$txtName_TextChanged={
Write-Verbose "Creating required account fields"
if ($XML.Options.Settings.DisplayName.Generate -eq $True) {$txtDN.Text = Set-DisplayName}
if ($XML.Options.Settings.sAMAccountName.Generate -eq $True -and $txtsAM.Text.Length -lt 8) {$txtsAM.Text = (Set-sAMAccountName)}
if ($XML.Options.Settings.UPN.Generate -eq $True) {$txtUPN.Text = Set-UPN}
}
Related
I am attempting to index my movie collection and in doing so have run across an issue where at least one title is skipped in the import phase due to special characters. The code skips over "Æon Flux" due to it starting with Æ. Would anyone know how to correct this, please?
Clear-Host
# Variables:
$movie_dir = "K:\Movies"
# Because reasons...
$PSDefaultParameterValues['*:Encoding'] = 'utf8'
# Connect to the library MySQL.Data.dll
Add-Type -Path 'C:\Program Files (x86)\MySQL\Connector NET 8.0\Assemblies\v4.8\MySql.Data.dll'
# Create a MySQL Database connection variable that qualifies:
$Connection = [MySql.Data.MySqlClient.MySqlConnection]#{ConnectionString='server=127.0.0.1;uid=username;pwd=password;database=media'}
$Connection.Open()
# Drop the table to clear all entries.
$sql_drop_table = New-Object MySql.Data.MySqlClient.MySqlCommand
$sql_drop_table.Connection = $Connection
$sql_drop_table.CommandText = 'DROP TABLE Movies'
$sql_drop_table.ExecuteNonQuery() | Out-Null
# (Re)create the table.
$sql_create_table = New-Object MySql.Data.MySqlClient.MySqlCommand
$sql_create_table.Connection = $Connection
$sql_create_table.CommandText = 'create table Movies(movie_id INT NOT NULL AUTO_INCREMENT, movie_title VARCHAR(255) NOT NULL, movie_file_date INT, movie_IMDB_id INT, PRIMARY KEY (movie_id))'
$sql_create_table.ExecuteNonQuery() | Out-Null
$movies = Get-ChildItem $movie_dir -File -include *.mp4 -Recurse -Depth 1 |
Select-Object -ExpandProperty FullName |
Sort-Object |
Get-Unique |
where{$_ -ne ""}
foreach ($movie in $movies)
{
# .net function to get just the filename (movie title).
$title = [System.IO.Path]::GetFileNameWithoutExtension($movie)
# Get the creation date of the movie and reformat it to yearmonthday.
$add_date = (Get-ChildItem $movie).CreationTime.toString("yyyyMMdd")
$query = "INSERT INTO Movies(movie_id, movie_title, movie_file_date) VALUES(NULL, #title, $add_date)"
$command = $connection.CreateCommand()
$command.CommandText = $query
# Sanatize single quotes in filenames for input.
$command.Parameters.AddWithValue("#title", $title) | Out-Null
$command.ExecuteNonQuery() | Out-Null
}
# Close the MySQL connection.
$Connection.Close()
Write-Host
Write-Host("Added") $movies.Count ("movies.")
I don't think it is the Get-ChildItem that skips the file with that special character. More likely, you need to tell your MySql to use UTF-8.
For that, have a look at How to make MySQL handle UTF-8 properly
As for your code, I would change this:
$movies = Get-ChildItem $movie_dir -File -include *.mp4 -Recurse -Depth 1 |
Select-Object -ExpandProperty FullName |
Sort-Object |
Get-Unique |
where{$_ -ne ""}
into
$movies = Get-ChildItem -Path $movie_dir -File -Filter '*.mp4' -Recurse -Depth 1 | Sort-Object -Property FullName
and work with the FileInfo objects from there on:
foreach ($movie in $movies) {
$title = $movie.BaseName
# Get the creation date of the movie and reformat it to yearmonthday.
$add_date = '{0}:yyyyMMdd}' -f $movie.CreationTime
. . .
}
Though Æ is not an ASCII character it is not otherwise "special", so I edited the question title and tags to reflect that.
ExecuteNonQuery() returns the number of rows affected by the command; in the case of $command, it's the number of rows inserted. You are discarding this value, however...
$command.ExecuteNonQuery() | Out-Null
...which masks the problem in the event the INSERT fails. Instead, test the result and respond appropriately...
if ($command.ExecuteNonQuery() -eq 1)
{
Write-Host -Message "Successfully inserted movie ""$title""."
}
else
{
Write-Warning -Message "Failed to insert movie ""$title""."
}
This will make it clear if the issue lies in interacting with the filesystem or the database.
Some other notes:
MySqlCommand implements the IDisposable interface and so each instance should be disposed when you're done using it...
$query = "INSERT INTO Movies(movie_id, movie_title, movie_file_date) VALUES(NULL, #title, $add_date)"
$command = $connection.CreateCommand()
try
{
$command.CommandText = $query
# Sanatize single quotes in filenames for input.
$command.Parameters.AddWithValue("#title", $title) | Out-Null
if ($command.ExecuteNonQuery() -eq 1)
{
Write-Host -Message "Successfully inserted movie ""$title""."
}
else
{
Write-Warning -Message "Failed to insert movie ""$title""."
}
}
finally
{
$command.Dispose()
}
...and the same for $sql_drop_table and $sql_create_table. The code in the finally block will run even if an error is thrown from within the try block.
See Difference with Parameters.Add and Parameters.AddWithValue and its links for why AddWithValue() can be problematic.
Instead of...
Write-Host("Added") $movies.Count ("movies.")
...a more typical way to build this message would be with string interpolation...
Write-Host "Added $($movies.Count) movies."
...or the format operator...
Write-Host ('Added {0} movies.' -f $movies.Count)
You can also incorporate numeric format strings, so if $movies.Count is 1234 and $PSCulture is 'en-US' then...
Write-Host "Added $($movies.Count.ToString('N0')) movies."
...and...
Write-Host ('Added {0:N0} movies.' -f $movies.Count)
...will both write...
Added 1,234 movies.
I have the following code:
$html = New-Object -ComObject "HTMLFile"
$source = Get-Content -Path $FilePath -Raw
try
{
$html.IHTMLDocument2_write($source) 2> $null
}
catch
{
$encoded = [Text.Encoding]::Unicode.GetBytes($source)
$html.write($encoded)
}
$t = $html.getElementsByTagName("table") | Where-Object {
$cells = $_.tBodies[0].rows[0].cells
$cells[0].innerText -eq "Name" -and
$cells[1].innerText -eq "Description" -and
$cells[2].innerText -eq "Default Value" -and
$cells[3].innerText -eq "Release"
}
The code works fine on Windows Powershell 5.1, but on Powershell Core 7 $_.tBodies[0].rows returns null.
So, how does one access the rows of an HTML table in PS 7?
PowerShell (Core), as of 7.3.1, does not come with a built-in HTML parser - and this may never change.
You must rely on a third-party solution, such as the PowerHTML module that wraps the HTML Agility Pack.
The object model works differently than the Internet Explorer-based one available in Windows PowerShell; it is similar to the XML DOM provided by the standard System.Xml.XmlDocument type ([xml])[1]; see the documentation and the sample code below.
# Install the module on demand
If (-not (Get-Module -ErrorAction Ignore -ListAvailable PowerHTML)) {
Write-Verbose "Installing PowerHTML module for the current user..."
Install-Module PowerHTML -ErrorAction Stop
}
Import-Module -ErrorAction Stop PowerHTML
# Create a sample HTML file with a table with 2 columns.
Get-Item $HOME | Select-Object Name, Mode | ConvertTo-Html > sample.html
# Parse the HTML file into an HTML DOM.
$htmlDom = ConvertFrom-Html -Path sample.html
# Find a specific table by its column names, using an XPath
# query to iterate over all tables.
$table = $htmlDom.SelectNodes('//table') | Where-Object {
$headerRow = $_.Element('tr') # or $tbl.Elements('tr')[0]
# Filter by column names
$headerRow.ChildNodes[0].InnerText -eq 'Name' -and
$headerRow.ChildNodes[1].InnerText -eq 'Mode'
}
# Print the table's HTML text.
$table.InnerHtml
# Extract the first data row's first column value.
# Note: #(...) is required around .Elements() for indexing to work.
#($table.Elements('tr'))[1].ChildNodes[0].InnerText
A Windows-only alternative is to use the HTMLFile COM object, as shown in this answer, and as used in your own attempt - I'm unclear on why it didn't work in your specific case.
[1] Notably with respect to supporting XPath queries via the .SelectSingleNode() and .SelectNodes() methods, exposing child nodes via a .ChildNodes collection, and providing .InnerHtml / .OuterHtml / .InnerText properties. Instead of an indexer that supports child element names, methods .Element(<name>) and .Elements(<name>) are provided.
I used the answer above for my solution. I installed PowerHTML.
I wanted to extract the datatable from https://www.dicomlibrary.com/dicom/dicom-tags/ and convert them.
From this:
<tr><td>(0002,0000)</td><td>UL</td><td>File Meta Information Group Length</td><td></td></tr>
To this:
{"00020000", "ULFile Meta Information Group Length"}
$page = Invoke-WebRequest https://www.dicomlibrary.com/dicom/dicom-tags/
$htmldom = ConvertFrom-Html $page
$table = $htmlDom.SelectNodes('//table') | Where-Object {
$headerRow = $_.Element('tr') # or $tbl.Elements('tr')[0]
# Filter by column names
$headerRow.ChildNodes[0].InnerText -eq 'Tag'
}
foreach ($row in $table.SelectNodes('tr'))
{$a = $row.SelectSingleNode('td[1]').innerText.Trim() -replace "`n|`r|\s+", " " -replace "\(",'{"' -replace ",","" -replace "\)",'",'
$c = $row.SelectSingleNode('td[3]').innerText.Trim() -replace "`n|`r|\s+", " "
$b=$row.seletSingleNode('td[2]').innerText.Trim() -replace "`n|`r|\s+", ""; $c = '"'+$b+$c+'"},'
$row = New-Object -TypeName psobject
$row | Add-Member -MemberType NoteProperty -Name Tag -Value $a
$row | Add-Member -MemberType NoteProperty -Name Value -Value $c
[array]$data += $row
}
$data | Out-File c:\scripts\dd.txt
I would like to be able to find all blanks from a CSV file and if a blank character is found on a line then should appear on the screen and I should be asked if I want to keep the entire line which contains that white space or remove it.
Let's say the directory is C:\Cr\Powershell\test. In there there is one CSV file abc.csv.
Tried doing it like this but in PowerShell ISE the $_.PSObject.Properties isn't recognized.
$csv = Import-Csv C:\Cr\Powershell\test\*.csv | Foreach-Object {
$_.PSObject.Properties | Foreach-Object {$_.Value = $_.Value.Trim()}
}
I apologize for not includding more code and what I tried more so far but they were silly attempts since I just begun.
This looks helpful but I don't know exactly how to adapt it for my problem.
Ok man here you go:
$yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Retain line."
$no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "Delete line."
$n = #()
$f = Get-Content .\test.csv
foreach($item in $f) {
if($item -like "* *"){
$res = $host.ui.PromptForChoice("Title", "want to keep this line? `n $item", [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no), 0)
switch ($res)
{
0 {$n+=$item}
1 {}
}
} else {
$n+=$item
}
}
$n | Set-Content .\test.csv
if you have questions please post in the comments and i will explain
Get-Content is probably a better approach than Import-Csv, because that'll allow you to check an entire line for spaces instead of having to check each individual field. For fully automated processing you'd just use a Where-Object filter to remove non-matching lines from the output:
Get-Content 'C:\CrPowershell\test\input.csv' |
Where-Object { $_ -notlike '* *' } |
Set-Content 'C:\CrPowershell\test\output.csv'
However, since you want to prompt for each individual line that contains spaces you need a ForEach-Object (or a similiar construct) and a nested conditional, like this:
Get-Content 'C:\CrPowershell\test\input.csv' | ForEach-Object {
if ($_ -notlike '* *') { $_ }
} | Set-Content 'C:\CrPowershell\test\output.csv'
The simplest way to prompt a user for input is Read-Host:
$answer = Read-Host -Prompt 'Message'
if ($answer -eq 'y') {
# do one thing
} else {
# do another
}
In your particular case you'd probably do something like this for any matching line:
$anwser = Read-Host "$_`nKeep the line? [y/n] "
if ($answer -ne 'n') { $_ }
The above checks if the answer is not n to make removal of the line a conscious decision.
Other ways to prompt for user input are choice.exe (which has the additional advantage of allowing a timeout and a default answer):
choice.exe /c YN /d N /t 10 /m "$_`nKeep the line"
if ($LastExitCode -ne 2) { $_ }
or the host UI:
$title = $_
$message = 'Keep the line?'
$yes = New-Object Management.Automation.Host.ChoiceDescription '&Yes'
$no = New-Object Management.Automation.Host.ChoiceDescription '&No'
$options = [Management.Automation.Host.ChoiceDescription[]]($yes, $no)
$answer = $Host.UI.PromptForChoice($title, $message, $options, 1)
if ($answer -ne 1) { $_ }
I'm leaving it as an exercise for you to integrate whichever prompting routine you chose with the rest of the code.
Yesterday I asked this question. Now I would like to do almost the same exercise with a small change: if there is a blank character on a line (go line by line in the CSV) ask the user if the blank character should be removed or not; the difference is, ONLY the blank and not the whole line.
The code which works for my previous question is:
$yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Retain line."
$no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "Delete line."
$n = #()
$f = Get-Content .\test.csv
foreach ($item in $f) {
if($item -like "* *"){
$res = $host.ui.PromptForChoice("Title", "want to keep this line? `n $item", [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no), 0)
switch ($res) {
0 {$n+=$item}
1 {}
}
} else {
$n+=$item
}
}
$n | Set-Content .\test.csv
What I think I should use is the Trim() function to achieve this.
So, I think I should modify in the if clause like below (aplogies for the silly syntax mistakes which I might do):
$yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Retain blank."
$no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "Delete blank."
$n = #()
$f = Get-Content .\test.csv
foreach ($item in $f) {
if ($item -like "* *") {
$res = $host.ui.PromptForChoice("Title", "want to keep the blank on this line? `n $item", [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no), 0)
switch ($res) {
0 {$n+=$item.Trim()}
1 {}
}
} else {
$n+=$item.Trim()
}
}
$n | Set-Content .\test.csv
This runs, but still deteles the line, so it shouldn't matter if I trimmed it or not first, I need to fix it so it will be kept or trimmed but not discarded .
EDIT:
Adjusting the switch ($res) like this doesn't work:
switch ($res) {
0 {$n+=$item.Trim()}
1 {$n+=$item}
}
} else {
$n+=$item.Trim()
}
Trim() without parameter removes all whitespace (not just spaces) from beginning and end of a string. You can't use it for removing spaces anywhere else in a string. Instead use the -replace operator:
$_ -replace ' '
Note that this time you need to output the unmodified string not only if it doesn't contain a space, but also if the user chooses to keep the existing space(s).
Im having issues setting an attribute value in AD when using a function. When I use Set-ADUser under the same conditions without using a function I do not get an issue, it works great. When using Set-ADUser within a function I am getting an invalid argument error. I need to use a function as I am comparing a lot of data values. Alot of data is going to be compared this the need for a function. Im stumped.
function compareandset($value_ad, $value_csv, $userid, $propdata) {
$id = $userid.SamAccountName
IF($value_ad -eq $value_csv) {
Write-Host "The values were the same!"
}
ELSEIF($value_ad -ne $value_csv) {
Write-Host "AD value changed"
get-aduser -filter {SamAccountName -eq $userid} | Set-ADUser -$propdata $value_csv
}
}
$userid = "jsmith"
$value_ad = "A city"
$value_csv = "Not a city"
$propdata = "Office"
compareandset $Office $office_csv_value $userid $propdata
What does the full error message say? You can try using splatting and change:
...
Write-Host "AD value changed"
get-aduser -filter {SamAccountName -eq $userid} | Set-ADUser -$propdata $value_csv
}
...
to:
...
Write-Host "AD value changed"
$params = #{$propdata=$value_csv}
get-aduser -filter {SamAccountName -eq $userid} | Set-ADUser #params
}
...
More about splatting here: http://technet.microsoft.com/en-us/library/jj672955.aspx