Progress bar in Power-Shell

Progress bar function is very important function in power shell. It’s always good to use show progress bar when you are running some process in your script. GUI effect makes you script much interactive and informative .Here  I am discussing  some of the power shell progress bar .We my be help full to someone.

#################################################################################

for($I = 1; $I -lt 101; $I++ )
{
    Write-Progress -Activity Updating -Status 'Progress->' -PercentComplete $I -CurrentOperation OuterLoop
    for($j = 1; $j -lt 101; $j++ )
    {
        Write-Progress -Id 1 -Activity Updating -Status 'Coping the file' -PercentComplete $j -CurrentOperation InnerLoop
    }
}

#################################################################################

################################# Function on progress bar ###########################

function Progress-Bar($iSeconds,$sInUnString)
{
    $Host.UI.RawUI.BackgroundColor = ($bckgrnd ='Black')                                                               # Changing the progress bar color and background text color
   # $Host.PrivateData.ProgressForegroundColor ='Green'
   # $Host.PrivateData.ProgressBackgroundColor='Black'

    $DoneDT = (Get-Date).AddSeconds($iSeconds)
    while($DoneDT -gt (Get-Date))
{
        $iSecondsLeft = $DoneDT.Subtract((Get-Date)).TotalSeconds
        $iPercent = ($iSeconds - $iSecondsLeft) / $iSeconds * 100
        Write-Progress -Activity "$sInUnString Apple.." -Status " " -PercentComplete $iPercent
        [System.Threading.Thread]::Sleep(500)
    }
 }

 Progress-Bar "20" "Best Company to work"

#################################################################################

############################### Time you can give here ##############################

$totalTimes = 10

  $i = 0

  for ($i=0;$i -lt $totalTimes; $i++) {

  $percentComplete = ($i / $totalTimes) * 100

  Write-Progress -Activity 'Work in Progress' -Status "Did thing $i  times" -PercentComplete $percentComplete

  sleep 1

}

#################################################################################

################################# Pause Program for 15 min #########################

###===========================
### Pause Program for 15 min
### - Matt Brown, 2008
###===========================
$x = 15*60
$length = $x / 100
while($x -gt 0) {
  $min = [int](([string]($x/60)).split('.')[0])
  $text = " " + $min + " minutes " + ($x % 60) + " seconds left"
  Write-Progress "Pausing Script" -status $text -perc ($x/$length)
  start-sleep -s 1
  $x--
}

#################################################################################

################################## Three progress bar################################

for ($i = 1; $i -le 2; $i++)
{
    Write-Progress -ID 1 -Activity "Outer loop" -Status "Tick $i" -percentComplete ($i / 2*100)
    for ($j = 1; $j -le 3; $j++)

    {
               Write-Progress -ID 2 -Activity "Mid loop" -Status "Tick $j" -percentComplete ($j / 3*100)
               for ($k = 1; $k -le 3; $k++)

           {

            Write-Progress -ID 3 -Activity "Inner loop" -Status "Tick $k" -percentComplete ($k / 3*100)
            Sleep(1)
           }
    }

}

#################################################################################

Create and remove new directory,file and folder using Power-Shell.

Creation and removal of directory\folder\file  in power shell is very easy .you just have pass simple command in script. Here we will see some of the example how we can create new Directory\Folder\File

Creating new Directory

New-Item -Path "c:\" -Name "Dir1" -ItemType "directory"

Creating multiple Dir using power shell

New-Item -ItemType "directory" -Path "c:\Dir1\Dir2"

New-Item -ItemType "directory" -Path "c:\Dir1\Dir2" -ErrorAction SilentlyContinue  

New-Item -ItemType Directory -Force -Path C:\Dir\You\Can\Create\Any\Time\Here

Check path exist or not condition here..

$path = "c:\Dir1\Dir2"

If(!(test-path $path))

{

      New-Item -ItemType Directory -Force -Path $path

}

Creating new test file and enter new test values.

New-Item -Path C:\Temp\ -Name "testfile1.txt" -ItemType "file" -Value "This is a text string."

Create multiple files

New-Item -ItemType "file" -Path "c:\ps-test\test.txt", "c:\ps-test\Logs\test.log"

Removing files and folder from power shell

Remove-Item –path c:\Dir1\Dir2 –recurse

Remove-Item -Path "c:\Dir1\Dir2" -Force -Recurse

Remove-Item "c:\Dir1\Dir2" -Force  -Recurse -ErrorAction SilentlyContinue

The –recurse parameter will allow Power Shell to remove any child items without asking for permission

More Complex Delete Operations

Remove-Item –path c:\test\ remove-item * -include *.mp3 –recurse

More Complex Delete Operations

Remove-Item –path c:\folder\* -include *.txt

Delete the 'demo' registry key and all of its subkeys and values:

Remove-item hklm:\software\SS64\demo -Recurse

Note:- Please test script in your test environment before running in production directly.

Change font color in Power-Shell and display in PS console

Every want color full life and color full job. Some time watching a black and white console makes thing very boring bring some color in your power shell console. Change font color using the power shell script. Its always looks good when you code have some significant color in console .As a script-er you have to show some nice color in power shell scripts.

In order to change the colors, I’ll familiarize myself with where that info is stored.This info is stored in the variable $host

you want to be cool and use Power-Shell to list the enum values.

1.
[System.Enum]::GetValues('ConsoleColor') | ForEach-Object { Write-Host $_ -ForegroundColor $_ }


2.  Change the font color of the console

      $host.UI.RawUI.ForegroundColor = "DarkGreen"

3.  Changing the main console foreground and background is slightly different. That data is stored in       a separate location.

      $host.UI.RawUI.ForegroundColor = "DarkGreen"
      $host.UI.RawUI.BackgroundColor = "Black"

4. Write with different text and background colors

     Write-Host "Whole text is in red" -ForegroundColor Red
     Write-Host "Red on white text." -ForegroundColor green -BackgroundColor black

5. Write to the console without adding a new line

     Write-Host "no newline test " -NoNewline
     Write-Host "second string"

6. Suppress output from Write-Host

    Write-Host "I won't print" -InformationAction Ignore

7. Color full console 

   Write-Host "Green " -ForegroundColor Green -NoNewline; 
   Write-Host "Red " -ForegroundColor Red -NoNewline; 
   Write-Host "Yellow " -ForegroundColor Yellow -NoNewline;

Note:- Please test script in your test environment before running in production directly.

How we can get the script file system location of from Power-Shell script ?

Here is the some cases we have to get power shell script system directory path .There is many way to achieve that .Power shell have some inbuilt function to get system directory and script path and root n-1 directory.

I am showing some example here. This examples may be help you to get your target Dir.

1. Best way to get Script directory path is

         $PSScriptRoot

Just save below code in .PS1 format and run it and you will get Dir path

         $ScriptName = $PSScriptRoot

         Write-host $ScriptName

Note:- For using $PSScriptRoot method your power shell version has 3.0 or above.If you have below 3.0 power shell function so please use below methods.

2. Get power shell script path

         $Script:sScriptFolder = (Get-Item $($MyInvocation.MyCommand.Path)).DirectoryName

         Write-Host $sScriptFolder

3. Get power shell script path

         $MyDir = [System.IO.Path]::GetDirectoryName($myInvocation.MyCommand.Definition)

         Write-Host $MyDir

4. Get power shell script file name.This is very good function

         $MyDir1 = $MyInvocation.MyCommand.Name

         Write-Host $MyDir1

5. Get complete power shell script path.

         $script_path = $myinvocation.mycommand.path

         Write-Host "Current ScriptPath $script_path"

6. Get the current directory of the cmdlet being executed

         (Get-Item -Path ".\").FullName

7. Get Script parent folder N-1 and N-2 folder path.This script will help you.

         $scriptPath = (Get-Item $($MyInvocation.MyCommand.Path)).DirectoryName

         $parentPath = Split-Path -parent $scriptPath

         Write-host $parentPath

         $rootPath = Split-Path -parent $parentPath

         Write-host $rootPath

Note:- Please test script in your test environment before running in production directly.