# Display file in ImageJ

Files can be displayed from the command line in ImageJ. The Bio-Formats importer plugin for ImageJ is used to open the file.

The command takes a single argument:

    ijview /file/to/open

If the input file is not specified, ImageJ will show a file chooser window.

The Bio-Formats import options window will then appear, after which the image(s) will be displayed.

If the BF_DEVEL environment variable is set, the `ImageJ jar <jars/ij.jar>` must be included in the classpath.