#!/bin/bash

# Loop through each CSV file in the current directory
for csv_file in *.csv; do
    # Check if the file is a regular file
    if [ -f "$csv_file" ]; then
        echo "Processing $csv_file..."

        # Temporary file
        temp_file=$(mktemp)

        # Check if the file has a header
        if head -1 "$csv_file" | grep -q "Submitted By"; then
            echo "The 'Submitted By' column already exists in $csv_file."
            continue
        fi

        # Add 'Submitted By' column header and 'Baseline' entry for each row
        awk -v OFS="," 'NR==1 {print $0, "Submitted By"} NR>1 {print $0, "Baseline"}' "$csv_file" > "$temp_file"

        # Move the temporary file to original file
        mv "$temp_file" "$csv_file"

        echo "Column 'Submitted By' added successfully with 'Baseline' entry in each row for $csv_file."
    fi
done

echo "All CSV files processed."