Windows PowerShell Comparison Operators
These operators work both with string and number based values assuming that you are comparing like with like (it is not meaningful, for example, to compare a string with numerical value). In terms of working with strings and characters, both case-sensitive and insensitive operators are supported.
| Operator | Description |
| -eq | Equal to (case insensitive) |
| -ieq | Equal to (case insensitive) |
| -ceq | Equal to (case sensitive) |
| -ne | Not equal to (case insensitive) |
| -ine | Not equal to (case insensitive) |
| -cne | Not equal to (case sensitive) |
| -gt | Greater than (case insensitive) |
| -igt | Greater than (case insensitive) |
| -cgt | Greater than (case sensitive) |
| -ge | Greater than or equal to (case insensitive) |
| -ige | Greater than or equal to (case insensitive) |
| -cge | Greater than or equal to (case sensitive) |
| -lt | Less than (case insensitive) |
| -ilt | Less than (case insensitive) |
| -clt | Less than (case sensitive) |
| -le | Less than or equal to (case insensitive) |
| -ile | Less than or equal to (case insensitive) |
| -cle | Less than or equal to (case sensitive) |
Windows PowerShell Containment Operators
In addition to the comparison operators, a set of operators referred to as containment operators are provided for the purpose of identifying whether an array or collection contains a specific value. The containment operators provided by PowerShell are listed in the following table. As with the comparison operators, both case sensitive and insensitive options are provided.
|
Operator |
Description |
|
-contains |
Group of values in left hand operand contains value specified in right hand operand (case insensitive) |
|
-icontains |
Group of values in left hand operand contains value specified in right hand operand (case insensitive) |
|
-ccontains |
Group of values in left hand operand contains value specified in right hand operand (case sensitive) |
|
-notcontains |
Group of values in left hand operand does not contain value specified in right hand operand (case insensitive) |
|
-inotcontains |
Group of values in left hand operand does not contain value specified in right hand operand (case insensitive) |
|
-cnotcontains |
Group of values in left hand operand does not contain value specified in right hand operand (case sensitive) |
Reference: Windows PowerShell 1.0 Comparison and Containment Operators
