PowerShell Tips and Tricks: Using Loops
Question: How to use Loops in PowerShell?
Answer: do while {} , for {} , foreach {}. We can choose as required for the scripting bu we should choose the best and logical one that suits our environment.
Demo: Print any text 5 times on the screen. Choose your best method
Many Opted for the below method using do while {}
Logic 1:
$i = 1
do {
Write-Host "PowerShell"
$i++
}
while ($i -le 5)
Whats wrong in this? Nothing but PowerShell can do this in very smart way. See the code below
Logic 2
$text = "PowerShell"
1..5 | %{$text}
The requirement is very simple so I opted the second method. But ended up with so much of confusions and questions from my team fellow.
- Your script can't get variables from the script execution or users can't pass the variable.
- No Write-Host so you can't print using foreground color.
- The quality is not great.
What made you to opt this logic?
I answered, because it's simple. We should know how to adopt the Power of Shell :)
I don't want to reply for Quality because nothing is bad here :).
My Final Code may answer you all
Logic 3
$times = Read-Host "Enter an integer value"
$text = Read-Host "Enter your Text"
1..$times | %{Write-Host $text -ForegroundColor Green}