[ Contents ](UsersGuide.md#contents)

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## Command Line Parameters #

| Parameter | Description |
|-----------|-------------|
| `-help, -?`               | Displays help text and version info |
| `-last`                   | Open last used project |
| `-project <filename>`     | Open project file <filename> |
| `-case <casename>`        | Import Eclipse case <casename> (do not include .GRID/.EGRID) |
| `-savesnapshots`          | Save snapshot of all views to 'snapshots' folder in project file folder. Application closes after snapshots are written to file. |
| `-regressiontest <folder>` | Run a regression test on all sub-folders starting with `TestCase*` of the given folder. **RegressionTest.rip** files in the sub-folders will be opened and snapshots of all the views is written to the sub-sub-folder **RegTestGeneratedImages**. Then difference images is generated in the sub-sub-folder **RegTestDiffImages** based on the images in sub-sub-folder **RegTestBaseImages**. The results are presented in **ResInsightRegressionTestReport.html** that is written in the given folder. |
| `-updateregressiontestbase <folder>` | For all sub-folders starting with `TestCase*`, copy the images in the sub-sub-folder **RegTestGeneratedImages** to the sub-sub-folder **RegTestBaseImages** after deleting **RegTestBaseImages** completely. |

See also the [Regression Test System ](RegressionTestSystem.md) for a more in-depth explanation.

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[ Contents ](UsersGuide.md#contents)