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This can be done using two lines of Bash

- `head -n 1 <file>` to get headers - `wc -l <file>` to count number of rows

I was thinking about using bash, but couldn't come up with a solution to use tabcompletion when I'm in a different directory than the CSV file I want the data from, so I don'need to change directory.

Not really, not if the CSV contains quoted newlines.

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