сергей кузьмин

$r1.Add_CheckedChanged({
param(
  [Object]$sender,
  [System.EventArgs]$e
)
  if ($r1.Checked -eq $true) {
    $c.Visible = $true
} else { 
    $c.Visible = $false
}

})

try {
    $ProgressPreference = 'Stop'
     $response  = Invoke-WebRequest -uri $url   
    $ProgressPreference = 'Continue'
  } catch [Exception]{
    # 1 NameResolutionFailure  
    # 15 ProxyNameResolutionFailure	
    # 2 ConnectFailure
    # 3 ReceiveFailure
    # 7 ProtocolError
    # 9 TrustFailure
    if ( $exception.Status -ne 7 ) {
      $statuscode =  $exception.Status

    } else { 
      $statuscode = $exception_statuscode.value__
    }

Start-Process -FilePath "docker.exe" -ArgumentList "version"  -RedirectStandardOutput .\\a.txt
get-content .\a.txt|select-string Version:

Get-Package -Name "Name Program" | select-object -property *

Get-Package -Name "Name Program"| select-object -expandproperty "имя свойства"

C:\1\2\3\fi.le |Split-Path -parent |Split-Path -leaf

@echo off
REM для https://qna.habr.com/q/1027240
set C=%~nx0
if NOT "%DEBUG%" equ "" echo Running with DEBUG set
REM using two environment parameters: C and DEBUG
REM NOTE:  passing arguments appears tricky when
REM powershell run with command built inline as string
@powershell.exe -ExecutionPolicy Bypass -Command "$debug=$env:DEBUG;$s=(get-content \"%~f0\") -join \"`n\"; $s = $s.substring($s.IndexOf(\"goto :\"+\"EOF\")+9);if ($debug -ne $null){write-output (\"Running:`n{0}\" -f$s);} invoke-expression -command $s"
@goto :EOF
# powershell code



start-sleep 5
write-output ( 'Calling script: {0}' -f $env:C)
pause

exit 0

c:\Users\sergueik\Desktop>set debug=1

c:\Users\sergueik\Desktop>show_caller.cmd
Running with DEBUG set
Running:


Start-Sleep 5
write-output ( 'Calling script: {0}' -f $env:C)
pause
exit 0

Calling script: show_caller.cmd
Press Enter to continue...:

# -*- coding: iso-8859-1 -*-

import subprocess, sys

p = subprocess.Popen(["powershell.exe",
              "C:\\Users\\<USER>\\Desktop\\test.ps1"],
              stdout=sys.stdout)
p.communicate()

remove-item -path 'not existing.txt' -erroraction silentlycontinue; echo $?
False

new-item -path 'dummy.txt'
Mode                LastWriteTime         Length Name
----                -------------         ------ ----
-a----       11/17/2019   8:24 PM              0 dummy.txt
remove-item -path 'dummy.txt' -erroraction silentlycontinue; echo $?
True

$func = { param ($a, $b)  ('{0} {1}' -f $a , $b)}
[Linq.Enumerable]::Zip(@("D:\1", "D:\2","D:\3"), @("C:\1", "C:\2", "C:\3"), [Func[Object, Object, Object[]]]$func)

D:\1 C:\1
D:\2 C:\2
D:\3 C:\3