Type in a command, or "ls dictionary" to search all commands for "dictionary", etc.

man youtube.com/watch?v=ZiCKHhcr-_I

No manual entry for youtube.com/watch?v=ZiCKHhcr-_I.
To search for "youtube.com/watch?v=ZiCKHhcr-_I", try typing ls youtube.com/watch?v=ZiCKHhcr-_I.
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