> ## Documentation Index
> Fetch the complete documentation index at: https://tally.wharflab.com/llms.txt
> Use this file to discover all available pages before exploring further.

# powershell/PSPossibleIncorrectUsageOfRedirectionOperator

> \'>\' is not a comparison operator. Use \'-gt\' (greater than) or \'-ge\' (greater or equal).

`powershell/PSPossibleIncorrectUsageOfRedirectionOperator` is a PSScriptAnalyzer diagnostic emitted by tally for PowerShell snippets embedded in
Dockerfiles.

| Property | Value            |
| -------- | ---------------- |
| Severity | Information      |
| Category | PSScriptAnalyzer |
| Auto-fix | No               |

## Description

In many programming languages, the comparison operator for 'greater than' is `>` but `PowerShell`
uses `-gt` for it and `-ge` (greater or equal) for `>=`. Therefore, it can easily happen that the
wrong operator is used unintentionally. This rule catches a few special cases where the likelihood
of that is quite high.

The rule looks for usages of `>` or `>=` operators inside `if`, `elseif`, `while` and `do-while`
statements because this is likely going to be unintentional usage.

## Examples

### Problematic code

```powershell theme={null}
if ($a > $b)
{
    ...
}
```

### Correct code

```powershell theme={null}
if ($a -gt $b)
{
    ...
}
```

## Source

This rule documentation is adapted from Microsoft's PSScriptAnalyzer documentation for
[PossibleIncorrectUsageOfRedirectionOperator](https://github.com/MicrosoftDocs/PowerShell-Docs-Modules/blob/main/reference/docs-conceptual/PSScriptAnalyzer/Rules/PossibleIncorrectUsageOfRedirectionOperator.md),
licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).