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$ sup ${filename-html}
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The command sup ${filename-html} appears to be using a variable called filename-html in a script or programming language that supports variable interpolation or substitution.

In this context, ${filename-html} is likely the syntax for referring to the value stored in the filename-html variable. The ${} notation is commonly used for variable substitution in many programming languages or shells.

By using sup, it suggests that the command might perform some action or operation on the value stored in filename-html, but without more context or information about the specific programming language or script, it is difficult to determine the exact purpose or outcome of this command.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.
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