Loop Array Elements in Windows PowerShell Scripts

Q

How to loop through all elements in an array in Windows PowerShell scripts?

✍: FYIcenter.com

A

An array has a special property called "Length", which holds the length of the array or the number of members in the array.

The "Length" property can help you to loop through all members using a simple "For {...}" loop as shown below:

$w = @("Sun","Mon","Tue","Wed","Thu","Fri","Sat")
"There are "+$w.Length+" days in a week:"
For ($i=0; $i -lt $w.Length; $i++) {
   "   "+$w[$i]
}

You can also the "Foreach (...) {...}" loop to loop through each member in array as show in the following example:

$w = @("Sun","Mon","Tue","Wed","Thu","Fri","Sat")
"Week days:"
Foreach ($d in $w) {
   "   "+$d
}

⇒ Hashtable in Windows PowerShell Scripts

⇐ Array in Windows PowerShell Scripts

⇑ Introduction of Windows PowerShell Script

⇑⇑ Windows PowerShell Tutorials

2016-10-29, ∼2271🔥, 0💬

Out-Host - Standard Output in Windows PowerShell Scripts
How to use the "Out-Host" cmdlet in Windows PowerShell scripts? I want to output information the standard output channel. The "Out-Host" cmdlet sends output to the Windows PowerShell host for display. The host displays the output to the PowerShell console. Because "Out-Host" is the default cmdlet, y... 2016-10-30, ∼3208🔥, 0💬

Work with File System in Windows PowerShell
Where to find tutorials on how to work with file systems in Windows PowerShell? Here is a collection of tutorials compiled by FYIcenter.com team on working with file systems in Windows PowerShell. What Is File System in Windows PowerShell Get and Change Directory in Windows PowerShell Get Directory ... 2016-10-27, ∼2882🔥, 0💬

Array in Windows PowerShell Scripts
What is an array in Windows PowerShell scripts? An array in Windows PowerShell is a simple data structure where pieces of data are stored in as elements in the structure in an ordered sequence. In an array, each element can be identified by the sequence index. You can create an array of objects by l... 2016-10-29, ∼2653🔥, 0💬

Run Script with Arguments in Windows PowerShell
How to write a script that take argument from the command line in Windows PowerShell? You can use the automatic variable $Args to take arguments from the command line where the script is launched. The $Args variable contains an array of all argument provided at the command line where this script was... 2016-10-27, ∼2481🔥, 0💬

Execution Status and Errors in Windows PowerShell Scripts
How to check execution status and errors in Windows PowerShell scripts? PowerShell provides 2 automatic variables to help you checking execution status and errors: 1. $? variable - The $? variable contains the execution status of the last operation. It contains TRUE if the last operation succeeded a... 2016-10-27, ∼2479🔥, 0💬

If-Else Conditions in Windows PowerShell Scripts
How to use if-else conditions in Windows PowerShell scripts? PowerShell script supports the following if-else code block to help you to perform tasks depending on logical conditions: If (conditin1) { task1 } Elseif (condition2) { task2 ... } Else { other-task } Here is a sample script on how to use ... 2016-10-30, ∼2383🔥, 0💬

Console Input and Output in Windows PowerShell Scripts
How to manage console input and output in Windows PowerShell scripts? I want to write a PowerShell script that "talks" with the user. You need to use the "Write-Host" and "Read-Host" cmdlets to manage console input and output. The "Write-Host" cmdlet allows to write information to the console with s... 2016-10-30, ∼2319🔥, 0💬

Hashtable in Windows PowerShell Scripts
What is a hashtables of objects in Windows PowerShell scripts? A hashtables in Windows PowerShell is a data structure where pieces of data are stored in the structure as key-value members. The value of a member represents the data, and the key of a member provides a name for the data. Hashtable keys... 2016-10-29, ∼2281🔥, 0💬

Execution Loops in Windows PowerShell Scripts
How to write execution loops in Windows PowerShell scripts? I want to repeat some code multiple times. There are several ways to write execution loops in Windows PowerShell scripts. 1. "While {...}" loop - For example: $today = Get-Date "Today is "+$today.DayOfWeek $next = $today.AddDays(1) While ($... 2016-10-29, ∼2272🔥, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.