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foreach (var i in Enumerable.Range(0, 10)) {
     Console.WriteLine(i);
}

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pip list | Select-String -Pattern '(\w+) \(.*\)' | foreach {pip uninstall $_.Matches.Groups[1].Value}

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ls | rename-item -newname { [io.path]::ChangeExtension($_.name, "c") }

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public class NetworkConnection : IDisposable
{
    string _networkName;

    public NetworkConnection(string networkName, 
        NetworkCredential credentials)
    {
        _networkName = networkName;

        var netResource = new NetResource()

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protected virtual bool IsFileLocked(FileInfo file)
{
    FileStream stream = null;

    try
    {
        stream = file.Open(FileMode.Open, FileAccess.Read, FileShare.None);
    }
    catch (IOException)
    {

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#Get local credentials
$mycredentials = Get-Credential

#Create credentials object
$secpasswd = ConvertTo-SecureString "PlainTextPassword" -AsPlainText -Force
$mycreds = New-Object System.Management.Automation.PSCredential ("username", $secpasswd)

Start-BitsTransfer -DisplayName MyJob -Credential $mycreds -Source "http://server01/servertestdir/testfile1.txt" -Destination "c:\clienttestdir\testfile1.txt

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Get-ChildItem -Path . -Recurse| ? {$_.LastWriteTime -gt (Get-Date).AddDays(-4)}

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$date = Get-Date -format "yyyyMMdd"
$date | Out-File c:\test.txt

$text = Get-Content c:\test.txt

$date = [datetime]::ParseExact($date, "yyyyMMdd", $null)

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Copy-Item c:\fso –destination \\server1\share -recurse -container

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using System;
using System.IO;

class DirectoryCopyExample
{
    static void Main()
    {
        // Copy from the current directory, include subdirectories.
        DirectoryCopy(".", @".\temp", true);
    }