Adding random CSV creation script

etl.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# Description: Used to generate Random CSV data
+# Author     : Ranga Reddy
+# Version    : v1.0
+# Date       : 18-Sep-2022
+
+num_records=${num_records:-20}                        ## Number of Records
+salary_max_rand_val=2000                              ## Maximum Salary Range value
+name_prefix=${name_prefix:-"ranga"}                   ## Name Prefix
+csv_file_name=data.csv     ## CSV filename
+
+echo "ID NAME AGE SALARY" | awk '{print $1,"\t",$2,"\t",$3,"\t",$4}' > $csv_file_name
+
+seq -f "%.0f" $num_records | awk -F $'\t' -v SAL_RAND_VAL=$salary_max_rand_val -v NAME_PRE=$name_prefix '{print $1,"\t",NAME_PRE$1 FS int(100*rand()) FS int(SAL_RAND_VAL*rand())}' >> $csv_file_name