csvkit:tldr:a06cf

This command is written using a shell or scripting language syntax, where ${command} and ${filename-csv} are placeholders for actual values to be provided.

It starts with "${command}", which is the variable or command name representing the specific action or tool that will be executed. This part of the command depends on the context or the specific scripting language being used. For example, it could be the name of a program or script that will perform a specific task.

After that, there is a space followed by a "-t". Here, "-t" is likely an argument or option passed to the command. "-t" typically stands for "type" or "tag" and specifies a certain type of operation or behavior for the command to follow.

Following the "-t" option, there is another space and then "${filename-csv}". This is another variable or placeholder representing the name of a specific CSV (Comma-Separated Values) file. Again, the actual filename should be provided in place of "${filename-csv}".

In summary, the command is instructing a specific command or script (represented by "${command}") to be executed with the "-t" option, followed by the CSV file (represented by "${filename-csv}"). The specific behavior and functionality of the command will depend on the context and the values provided for ${command} and ${filename-csv}.