Create random data bash

create_random_data.sh

#!/bin/bash
filename="sampledata.csv"
rmax=5000
pmax=150
echo "" > $filename
for ((i=0; i < $rmax; i++)); do
    row="${i},"
    for ((j=0; j < $pmax; j++)); do
        row="$row$(($RANDOM % 50)),"
    done
    echo $row
    echo $row >> $filename
done