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powershell/PSPossibleIncorrectUsageOfRedirectionOperator is a PSScriptAnalyzer diagnostic emitted by tally for PowerShell snippets embedded in Dockerfiles.
PropertyValue
SeverityInformation
CategoryPSScriptAnalyzer
Auto-fixNo

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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.

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Examples

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Problematic code

if ($a > $b)
{
    ...
}

​
Correct code

if ($a -gt $b)
{
    ...
}

​
Source

This rule documentation is adapted from Microsoft’s PSScriptAnalyzer documentation for PossibleIncorrectUsageOfRedirectionOperator, licensed under CC BY 4.0.