Comparison operators are used for comparing two mathematical expressions which results in true, false or unknown.

PowerShell has a wide variety of comparison operators which are as follows:

• Equal to and not equal to: -eq and -ne
• Like and not like: -like and -notlike
• Greater than and greater than or equal to: -gt and -ge
• Less than and less than or equal to: -lt and -le
• Contains and not contains: -contains and -notcontains
• In and not in: -in and -notin