Learn PowerShell Core 6.0

Comparison operators 

Comparison operators are needed to create expressions and conditions. Comparison operators are always between two objects, one on the left and one on the right. All of them return a Boolean value, either $true or $false, unless you don't compare a list of objects. In the latter scenario most operators would return the matching objects. For all of the comparison operations, there are additional keywords available to work case-sensitive (leading c character) or explicitly case-insensitive (leading i character). Case-sensitivity is a feature to not ignore upper and lower cases between two variables. Default operators work case-insensitive and are marked in bold. This gives you simple guidance. For the first steps, you only ...