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banner:tldr:ef6e7
The given command is an example of using the command-line utility "banner" with different options and arguments.
Here's how each element in the command works:
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"banner": It is a command-line utility that is used to print large ASCII characters or banners on the terminal.
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"-w": It is an option that specifies the width of the output banner. In this case, it seems to be followed by a variable which is meant to provide the value of the width dynamically.
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"${50}": It appears to be the variable being used to provide the width value. In this case, it is set to 50, but as "${50}" is wrapped in quotes, it might be part of a larger script or command line where this variable gets its value dynamically.
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"${Hello World}": It seems to be another variable, but it is quoted as a string. However, it seems incorrect as it should not have quotes around it. If this command is meant to display "Hello World" in a banner format, it should be written as: "${Hello} ${World}", with each word being a separate variable.
To summarize, the command tries to create a banner by printing the string "Hello World" using ASCII characters. The width of the banner is set to 50, which might be subject to change dynamically based on the value of the variable "${50}".