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Variable Expansion in Strings in Windows PowerShell

Q

What is variable expansion in strings in Windows PowerShell?

✍: FYIcenter.com

A

Variable expansion in strings is a short-hand of string concatenation operations using the following syntax rule:

When a variable is included in a double-quoted string literal like "... $variable ...", it will be replaced with the string representation of the variable value.

In other words, the following two expressions are identical: 

"Leading text $var trailing text."
"Leading text "+$var+" trailing text."

Remember, if you want to keep $var as 3 characters instead of a variable, you need to use the $ sign escape sequence. Here is a good example of using variable expansion in a string: 

PS C:\fyicenter> $name = "John"
PS C:\fyicenter> Write-Host "Value of `$name: $name"
Value of $name: John

 

⇒ Expression Expansion in Strings in Windows PowerShell

⇐ String Concatenation in Windows PowerShell

⇑ Work with Strings in Windows PowerShell

⇑⇑ Windows PowerShell Tutorials

2016-10-20, 906👍, 0💬

Administration Adware Spyware Apache Bluetooth DOS Commands Edge General Internet Connection Internet Explorer Media Center Media Player Mozilla Firefox MS Access Performance PHP Programming Security Silverlight Tips Tools Tutorials Windows 10 Windows 7 Windows 8 Windows Phone Windows Server 2008 Windows Server 2012 Windows Server 2016 Windows Vista Windows XP