Windows powershell if syntax

Optionally, you can provide the name of the OU where the new accounts will be born. Download your FREE bulk import tool. In the event of the first test being false PowerShell works its way through the ElseIf statements. As usual, the secret of understanding the syntax is to pay close attention to the style of bracket. Please email me if you have a better example script. Also please report any factual mistakes, grammatical errors or broken links, I will be happy to correct the fault.

Example 2d: NetSh The purpose of this example is to check the status of a firewall on a Windows client machine such as Windows 8. About The Author Guy Thomas. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. The PowerShell logical operators connect expressions and statements, allowing you to use a single expression to test for multiple conditions.

For example, the following statement uses the and operator and the or operator to connect three conditional statements. I get as far as the if statement but it doesn't go to the else statement. If you find that my post has answered your question, please mark it as the answer. If you find my post to be helpful in anyway, please click vote as helpful.

Instead of this:. If the flow of control is such that it would be more logical for the "false" code block to appear first, I'd change it to this:. Thank you! That worked. I am still in the learning stages of powershell. And now running my second script with the correct statement works. If a variable already has a boolean value, it is redundant to compare it to one of the two boolean constants. In simple examples such as this, it is fairly easy to tell the difference between an equality operator and an assignment operator.

In more complex scripts, however, things could be confusing. Windows PowerShell removes that confusion by having special comparison operators. These are seen in Table 1. As mentioned earlier, this clarity comes with a bit of confusion, until you take the time to learn the PowerShell comparison operators.

One thing that might help is to realize that the main operators are two letters long. Remember that the If statement executes the script block if the condition evaluates to true. Any assignment will evaluate to true, and therefore the script block is executed. Any assignment evaluates to true, and the script block executes. Rarely do you test a condition and perform an outcome. Most of the time, you have to perform one action if the condition is true, and another action if the condition is false.

The Else clause went immediately after the first outcome to be performed if the condition were true. This is seen in the DemoIfElse. In Windows PowerShell the syntax is not surprising. Following the closing curly brackets from the If statement script block, you add the Else keyword and open a new script block to hold the alternative outcome. Things become confusing with VBScript when you want to evaluate multiple conditions and have multiple outcomes.

The Else If clause provides for the second outcome.