https://github.com/monochromegane/mdt を使ってcsvをmdのtableに変換するfishの関数（gzip対応版）

csv2md.fish

function csv2md
    function usage
        echo "Description: Convert csv file to table in markdown format."
        echo "Usage: csv2md [-z] FILE"
        echo "Options and arguments:"
        echo -e "\t-z\t: Uncompress gzip archived csv"
        echo -e "\tFILE\t: Path to CSV file"
    end

    set command "cat"
    for opt in $argv
        switch "$opt"
            case -z
                set command "gunzip -c"
            case -h
                usage
                return 0
            case **
                set csv "$opt"
        end
    end
    if not string length -q "$csv"
        echo "Please specify csv file to convert"
        usage
        return 1
    end
    eval $command $csv | mdt
end