Concatenate string in powershell

Upgrade to Microsoft Edge to take advantage of the latest concatenate string in powershell, security updates, and technical support. The concat function combines multiple values and returns the concatenated values as a single string. Separate each value with a comma. The concat function is variadic.

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. There are many ways to use variables in strings. I'm calling this variable substitution but I'm referring to any time you want to format a string to include values from variables. This is something that I often find myself explaining to new scripters. The original version of this article appeared on the blog written by KevinMarquette. The PowerShell team thanks Kevin for sharing this content with us. Please check out his blog at PowerShellExplained.

Concatenate string in powershell

I do automate stuff for fun and work. I believe C is still one of the best languages out there even if it has been ages since I wrote anything in it, nowadays only use Go whenever I need something compiled or high performance. I strongly believe in clean and easy to read code leaving aliases and shortcuts for forums showoffs. Many times when writing a PowerShell script I find myself manipulating lot of strings, for example appending html code to a notification mail body, to build what the final value I want to be. The most common way of doing this is using concatenation with the most common form being something similar to this:. This is perfectly valid PowerShell code and will execute without any issue but there is a catch. Strings are immutable objects, this is the same in many languages like Python for example, and as such read only. This is taken from MSDN which makes a great job, far better than I can, to explain what is really happening behind the scenes when using the above approach:. A String object is called immutable read-only , because its value cannot be modified after it has been created. Methods that appear to modify a String object actually return a new String object that contains the modification.

This is something that I often find myself explaining to new scripters. The SingleQuote parameter wraps the directory names with single-quote marks. The output of the function is a single string with every inputValue concatenated together.

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. The Join-String cmdlet joins, or combines, text from pipeline objects into a single string. By specifying a property name, the property's value is converted to a string and joined into a string. Instead of a property name, a script block can be used. The script block's result is converted to a string before it's joined to form the result.

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. The Join-String cmdlet joins, or combines, text from pipeline objects into a single string. By specifying a property name, the property's value is converted to a string and joined into a string. Instead of a property name, a script block can be used. The script block's result is converted to a string before it's joined to form the result. It can either combine the text of an object's property or the result of the object that was converted to a string. This example joins directory names, wraps the output in double-quotes, and separates the directory names with a comma and space ,. The output is a string object.

Concatenate string in powershell

When outputting data from PowerShell you often need to concatenate two or more strings or variables. But there are other ways to concatenate strings as well. The problem with joining strings or variables in PowerShell is often finding the correct output method.

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I'm a fan of the format string approach. When you need to join multiple strings or values, then the format operator placeholder method is often easier to read. Enter a variable that contains the text, or type a command or expression that gets the objects to join into strings. When I have a list of tokens that I need to replace, I take a more generic approach. The reason why is because it just collects all the strings you add to it and only concatenates all of them at the end when you retrieve the value. The PowerShell team thanks Kevin for sharing this content with us. This browser is no longer supported. The principal and results are the same as the join operator, only the writing style is a bit different:. There's a -join operator that can do that for you. Will you consider disabling it?

There are different ways to concatenate strings using the -f operator, and join operator. PowerShell built-in Concat function is used for string concatenation.

Table of contents. Text that's appended to the output string. Text that's inserted before the output string. Remember that a string is just an array of characters. Append 'Text2'. The PowerShell team thanks Kevin for sharing this content with us. Things get a little tricky when you start trying to get the values of properties into a string. Wraps the string value of each pipeline object in single quotes. Additional resources In this article. Table of contents Exit focus mode. PowerShell has another option that is easier.