The `Resolve-Path` cmdlet has a `-Relative` parameter that will return a path relative to the current directory:

    Set-Location C:\MyScript
    $relativePath = Get-Item Data\Test.txt | Resolve-Path -Relative



In case the directory doesn&#39;t exist, or the base directory should be different from the current working directory, there&#39;s a .NET method `[IO.Path]::GetRelativePath(String from, String to)`.

We&#39;re building an app for another company. They hold the signing key and would rather not share it with us. 

It should be possible to separate build and sign, but how do I specify it on xcodebuild&#39;s command line?


Building iOS applications using xcodebuild without codesign

I want to insert a `sql.gz` file into my database with SSH. What should I do?

For example I have a database from telephone numbers that name is `numbers.sql.gz`, what is this type of file and how can I import this file into my database?


Import and insert sql.gz file into database with putty

Is there any straight-forward way (by use of cmdlets or .NET classes) to obtain only the relative path of a file in a sub-folder from a given path?

eg current folder is `C:\MyScript` and there is a sub-folder called `Data` with a file `Test.txt`, so I would like to see `Data\Test.txt` instead of `C:\MyScript\Data\Test.txt`

Get relative path of files in sub-folders from the current directory

<p>Is there any straight-forward way (by use of cmdlets or .NET classes) to obtain only the relative path of a file in a sub-folder from a given path?</p>
<p>eg current folder is <code>C:\MyScript</code> and there is a sub-folder called <code>Data</code> with a file <code>Test.txt</code>, so I would like to see <code>Data\Test.txt</code> instead of <code>C:\MyScript\Data\Test.txt</code></p>


I have a code in C# which uses lambda expressions for delegate passing to a method. How can I achieve this in PowerShell. For example the following is a C# code:


    string input = &quot;(,)(;)(:)(!)&quot;;
    string pattern = @&quot;$(?&lt;val&gt;[\,\!\;\:])$&quot;;
    var r = new Regex(pattern);
    string result = r.Replace(input, m =&gt;
        {
            if (m.Groups[&quot;val&quot;].Value == &quot;;&quot;) return &quot;[1]&quot;;
            else return &quot;[0]&quot;;
        });
    Console.WriteLine(result);

And this is the PowerShell script without the lambda-expression in place:

    $input = &quot;(,)(;)(:)(!)&quot;;
    $pattern = &quot;$(?&lt;val&gt;[\,\!\;\:])$&quot;;
    $r = New-Object System.Text.RegularExpressions.Regex $pattern
    $result = $r.Replace($input, &quot;WHAT HERE?&quot;)
    Write-Host $result

**Note:** my question is not about solving this regular-expression problem. I just want to know how to pass a lambda expression to a method that receives delegates in PowerShell.

Lambda Expression in Powershell

I&#39;m using Powershell to set up IIS bindings on a web server, and having a problem with the following code:

    $serverIps = gwmi Win32_NetworkAdapterConfiguration 
        | Where { $_.IPAddress } 
        | Select -Expand IPAddress 
        | Where { $_ -like &#39;*.*.*.*&#39; } 
        | Sort

    if ($serverIps.length -le 1) {
        Write-Host &quot;You need at least 2 IP addresses for this to work!&quot;
        exit
    }
    
    $primaryIp = $serverIps[0]
    $secondaryIp = $serverIps[1]

If there&#39;s 2+ IPs on the server, fine - Powershell returns an array, and I can query the array length and extract the first and second addresses just fine.

Problem is - if there&#39;s only one IP, Powershell doesn&#39;t return a one-element array, it returns the IP address (as a string, like &quot;192.168.0.100&quot;) - the string has a `.length` property, it&#39;s greater than 1, so the test passes, and I end up with the first two characters in the string, instead of the first two IP addresses in the collection.

How can I either force Powershell to return a one-element collection, or alternatively determine whether the returned &quot;thing&quot; is an object rather than a collection?

How can I force Powershell to return an array when a call only returns one object?

I want to include an apostrophe in my string. Is it possible to do without using double quotes?

    &#39;This is a quote. Can`&#39;t I just include a single quote in it?&#39;
    &#39;This is another quote that doesn\&#39;t work&#39;


Can I use a single quote in a PowerShell &#39;string&#39;?

In my script I&#39;m about to run a command

    pandoc -Ss readme.txt -o readme.html

But I&#39;m not sure if `pandoc` is installed. So I would like to do (pseudocode)

    if (pandoc in the path)
    {
        pandoc -Ss readme.txt -o readme.html
    }

How can I do this for real?



Test if executable is in path in PowerShell

I want to split each line of a pipe on spaces, and then print each token on its own line.

I realise that I can get this result using:

    (cat someFileInsteadOfAPipe).split(&quot; &quot;)

But I want more flexibility. I want to be able to do just about anything with each token. (I used to use [AWK][1] on Unix, and I&#39;m trying to get the same functionality.)

I currently have:

    echo &quot;Once upon a time there were three little pigs&quot; | %{$data = $_.split(&quot; &quot;); Write-Output &quot;$($data[0]) and whatever I want to output with it&quot;}

Which, obviously, only prints the first token. Is there a way for me to for-each over the tokens, printing each in turn?

Also, the `%{$data = $_.split(&quot; &quot;); Write-Output &quot;$($data[0])&quot;}` part I got from a blog, and I really don&#39;t understand what I&#39;m doing or how the syntax works.

I want to google for it, but I don&#39;t know what to call it. Please help me out with a word or two to Google, or a link explaining to me what the `%` and all the `$` symbols do, as well as the significance of the opening and closing brackets.

I realise I can&#39;t actually use `(cat someFileInsteadOfAPipe).split(&quot; &quot;)`, since the file (or preferable incoming pipe) contains more than one line.

Regarding some of the answers:

If you are using [`Select-String`][2] to filter the output before tokenizing, you need to keep in mind that the output of the `Select-String` command is not a collection of strings, but a collection of `MatchInfo` objects. To get to the string you want to split, you need to access the `Line` property of the `MatchInfo` object, like so:

    cat someFile | Select-String &quot;keywordFoo&quot; | %{$_.Line.Split(&quot; &quot;)}

  [1]: http://en.wikipedia.org/wiki/AWK
  [2]: https://technet.microsoft.com/en-us/library/hh849903.aspx



Split string with PowerShell and do something with each token

What is the required syntax to redirect standard input/output on Windows PowerShell?

On Unix, we use:

    $./program &lt;input.txt &gt;output.txt

How do I execute the same task in PowerShell?


Redirecting standard input\output in Windows PowerShell

I have this one-liner:

    get-WmiObject win32_logicaldisk -Computername remotecomputer

and the output is this:

    DeviceID     : A:
    DriveType    : 2
    ProviderName :
    FreeSpace    :
    Size         :
    VolumeName   :

    DeviceID     : C:
    DriveType    : 3
    ProviderName :
    FreeSpace    : 20116508672
    Size         : 42842714112
    VolumeName   :

    DeviceID     : D:
    DriveType    : 5
    ProviderName :
    FreeSpace    :
    Size         :
    VolumeName   :

How do I get `Freespace` and `Size` of `DeviceID` `C:`? I need to extract just these two values with no other informations. I have tried it with `Select` cmdlet, but with no effect.

**Edit:** 
I need to extract the numerical values only and store them in variables. 

How to get disk capacity and free space of remote computer

I need to get all the files including the files present in the subfolders that belong to a particular type.

I am doing something like this, using [Get-ChildItem][1]:

    Get-ChildItem &quot;C:\windows\System32&quot; -Recurse | where {$_.extension -eq &quot;.txt&quot;}

However, it&#39;s only returning me the files names and not the entire path.

  [1]: http://technet.microsoft.com/en-us/library/hh849800.aspx


Get full path of the files in PowerShell

&lt;!-- language: lang-powershell --&gt;

    PowerShell -Command .\Foo.ps1

 - `Foo.ps1`:

    &lt;!-- language: lang-powershell --&gt;

        Function Foo($directory)
        {
            echo $directory
        }

        if ($args.Length -eq 0)
        {
            echo &quot;Usage: Foo &lt;directory&gt;&quot;
        }
        else
        {
            Foo($args[0])
        }

 Despite `Foo.ps1` being in the directory from where I am calling Powershell, this results in:
    ```none
    The term &#39;.\Foo.ps1&#39; is not recognized as the name of a cmdlet, function, script file, or operable program. 
    Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
    ```
   - _EDIT: Wasn&#39;t working because PowerShell was changing directory due to `profile.ps1` containing `cd C:\`_

&lt;br&gt; I then tried to call it specifying the full path to the script file, but no matter what I try, I can&#39;t get it to work. _I believe I have to quote the path because it contains whitespaces, as does the file name I need to pass in an argument to the script._

 - Best guess so far:

    &lt;!-- language: lang-powershell --&gt;

        PowerShell -Command &quot;&#39;C:\Dummy Directory 1\Foo.ps1&#39; &#39;C:\Dummy Directory 2\File.txt&#39;&quot;

 Outputs error: 
    ```none
    Unexpected token &#39;C:\Dummy Directory 2\File.txt&#39; in expression or statement. 
    At line:1 char:136.
    ```

How to run a Powershell script from the command line and pass a directory as a parameter

I have directory structure that looks like this:

    C:\TFS\MasterScript\Script1.ps1
    C:\TFS\ChildScript\Script2.ps1

What i want to do is specify the relative path in Script2.ps1 to look for Script1.ps1 in the directory hirearchy.

This is what i tried in Script2.ps1:

    Import-Module ../MasterScript/Script1.ps1

but it does not work and says it cannot find the module.

If i say `Import-Module C:\TFS\MasterScript\Script1.ps1`, it works fine.
What am i missing here?


relative path in Import-Module

I am new to powershell, and trying to teach myself the basics.  I need to write a ps script to parse a file, which has not been too difficult.

Now I want to change it to pass a variable to the script.  that variable will be the parsing string.  Now, the variable will always be 1 word, and not a set of words or multiple words.

This seems uber simple yet is posing a problem for me.  Here is my simple code:

    $a = Read-Host
    Write-Host $a

When I run the script from my command line the variable passing doesn&#39;t work:

    .\test.ps1 hello
    .\test.ps1 &quot;hello&quot;
    .\test.ps1 -a &quot;hello&quot;
    .\test.ps1 -a hello
    .\test.ps1 -File &quot;hello&quot;

As you can see, I have tried many methos with no success, of the script taking the value an outputting it.

The script does run, and waits for me to type a value, and when I do, it echos that value.

I just want it to output my passed in value, what minuscule thing am I missing?

Thank you.



  

Passing a variable to a powershell script via command line

I am writing a PowerShell script to create several directories if they do not exist.

The filesystem looks similar to this

    D:\
    D:\TopDirec\SubDirec\Project1\Revision1\Reports\
    D:\TopDirec\SubDirec\Project2\Revision1\
    D:\TopDirec\SubDirec\Project3\Revision1\

- Each project folder has multiple revisions. 
- Each revision folder needs a Reports folder.  
- Some of the &quot;revisions&quot; folders already contain a Reports folder; however, most do not. 

I need to write a script that runs daily to create these folders for each directory.

I am able to write the script to create a folder, but creating several folders is problematic.

Create directory if it does not exist

If I have an instance of PowerShell ISE running and I install something that modifies the PATH or I modify it in any way outside of PowerShell then I need to restart PowerShell for it to see the updated PATH variable. 

Is there a way to reload the path from within PowerShell without restarting it?


Reload the path in PowerShell

I want to read a file line by line in PowerShell. Specifically, I want to loop through the file, store each line in a variable in the loop, and do some processing on the line.

I know the Bash equivalent:

    while read line do
        if [[ $line =~ $regex ]]; then
              # work here
        fi
    done &lt; file.txt

Not much documentation on PowerShell loops.


Content Type	Original Author	Original Content on Stackoverflow
Question	blue18hutthutt	View Question on Stackoverflow
Solution 1 - Powershell	Aaron Jensen	View Answer on Stackoverflow
Solution 2 - Powershell	a-n	View Answer on Stackoverflow

Get relative path of files in sub-folders from the current directory

Powershell Problem Overview

Powershell Solutions

Solution 1 - Powershell

Solution 2 - Powershell

Import and insert sql.gz file into database with putty

Building iOS applications using xcodebuild without codesign

Attributions