尝试使用 getopts 进行排序，使用不同的命令，但无法按价格排序

我正在尝试在以下 unix/linux 中对库存清单进行排序。我成功地按名称和 ID 进行排序，并能够调出使用菜单，但无法按价格排序，即使使用“awk”函数也是如此。

我使用 调用代码./invOpt -p，输出继续告诉我这是一个invalid option: -p然后拉出下面的使用菜单。我很困惑，因为它拒绝对价格所在的第 4 个字段进行排序。我不知道 $ 和/或逗号符号是否扰乱了排序

"Usage: invOpts -i | -n | -p | -h
"  -i  sort by product ID"
"  -n  sort by product name"
"  -p  sort by price"
"  -h  display usage"

INVENTORY MENU:
Product ID   Product Name                   Quantity   Price        Total Value
-----------  ------------------------------ --------   -----        -----------
P101        Apple MacBook Pro           25      $2,399.99       $59,999.75
P102        Samsung Galaxy S23          40      $799.99         $31,999.60
P103        Apple iPhone 15             60      $999.99         $59,999.40
P104        Google Pixel 8              35      $899.99         $31,499.65
P105        Microsoft Surface Pro 9     18      $1,299.99       $23,399.82
P106        Dell XPS 13                 50      $1,099.99       $54,999.50
P107        Apple iPad Air              75      $599.99         $44,999.25
P108        Fitbit Charge 5             100     $179.95         $17,995.00
P109        Amazon Echo Dot 5th Gen     150     $49.99          $7,498.50
P110        Sonos One SL                80      $199.99         $15,999.20
P111        Logitech MX Master 3        120     $99.99          $11,998.80
P112        HP Spectre x360             25      $1,499.99       $37,499.75
P113        GoPro Hero 11               60      $399.99         $23,999.40
P114        Nintendo Switch OLED        45      $349.99         $15,749.55
P115        Canon EOS R6                15      $2,499.99       $37,499.85
P116        Seagate 2TB External Hard Drive 200     $69.99          $13,998.00
P117        Apple AirPods Pro 2nd Gen   130     $249.99         $32,498.70
P118        MSI GeForce RTX 4070        40      $599.99         $23,999.60
P119        Lenovo ThinkPad X1 Carbon   20      $1,799.99       $35,999.80
P120        Anker PowerCore 26800       180     $59.99          $10,798.20

当前代码：

#!/bin/bash

# Function to display usage information
usage() {
    echo "Usage: invOpts -i | -n | -p | -h"
    echo "  -i  sort by product ID"
    echo "  -n  sort by product name"
    echo "  -p  sort by price"
    echo "  -h  display usage"
}

# Process command-line options using getopts
while getopts ":inp:h" opt; do
    case $opt in
        i)
            # Sort by product ID (Field 1) and save to a temp file
            tempFile="/tmp/inventory_sorted_by_id_$$.txt"
            sort -t: -k1,1 ~/A09/inventory > "$tempFile"
            ;;
        n)
            # Sort by product name (Field 2) and save to a temp file
            tempFile="/tmp/inventory_sorted_by_name_$$.txt"
            sort -t: -k2,2 ~/A09/inventory > "$tempFile"
            ;;
        p)
            # Sort by price (Field 4) and save to a temp file
            tempFile="/tmp/inventory_sorted_by_price_$$.txt"
            sort -t: -k4,4n ~/A09/inventory > "$tempFile"
            ;;
        h)
            # Display usage and exit
            usage
            exit 0
            ;;
        ?)
            # Handle invalid options
            echo "Invalid option: -$OPTARG"
            usage
            exit 1
            ;;
    esac
done

# If no option is provided, default to original file
if [[ -z $tempFile ]]; then
    tempFile=~/A09/inventory
fi

# Source the myFunctions script to use the chkFile function
source ~/Homework9/myFunctions

# Store the inventory file name
filename=~/A09/inventory

# Check if the file exists using chkFile
chkFile $filename
if [[ $? -ne 0 ]]; then
    echo "Error: Inventory file does not exist."
    exit 1
fi

# Print the header
printf "%-12s %-30s %-10s %-15s %-15s\n" "Product ID" "Product Name" "Quantity" "Price" "Total Value"
printf "%-12s %-30s %-10s %-15s %-15s\n" "-----------" "------------------------------" "--------" "-----" "-----------"

# Initialize total inventory value
totalInventoryValue=0

# Read the sorted file line by line (either sorted or original)
while IFS=: read -r productID productName quantity price; do
    # Calculate the total value: Quantity * Price
    totalValue=$(echo "$quantity * $price" | bc -l)

    # Format the price and total value with commas
    formattedPrice=$(echo $price | sed ':a;s/\B[0-9]\{3\}\>/,&/;ta')
    formattedTotalValue=$(echo $totalValue | sed ':a;s/\B[0-9]\{3\}\>/,&/;ta')

    # Print the formatted data
    printf "%-12s %-30s %-10s $%-14s $%-14s\n" "$productID" "$productName" "$quantity" "$formattedPrice" "$formattedTotalValue"

    # Add total value to the overall inventory value
    totalInventoryValue=$(echo "$totalInventoryValue + $totalValue" | bc -l)
done < "$tempFile"

# Format the total inventory value with commas
formattedTotalInventoryValue=$(echo $totalInventoryValue | sed ':a;s/\B[0-9]\{3\}\>/,&/;ta')

# Print the total inventory value
printf "\nTotal Inventory Value: $%-14s\n" "$formattedTotalInventoryValue"

# Clean up the temporary file
rm -f "$tempFile"