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is-up:tldr:60983
The command "is-up ${example-com}" is not a recognized command in most command-line interfaces. It appears to be a placeholder or template for testing the availability or "up" status of a website or domain name.
In general, the "is-up" command is often used to check if a website or server is running and accessible. It attempts to establish a connection or send a request to the specified domain (in this case, "example.com") and verifies whether the website responds with a successful status.
However, in the given command, the domain name is expected to be provided as a variable within curly braces (${example-com}). This syntax suggests that the actual domain name or URL should be substituted in place of ${example-com}. For example, if the intended domain is "google.com", the command would be written as "is-up google.com".
Again, please note that this specific command may not be universally recognized, and its usage might vary depending on the platform or scripting language it is being used in.