我在创建一个Bash脚本时遇到了麻烦，该脚本将从文件名列表中提取应用程序名称，版本号和可能的扩展名，例如：

1. name-of-application-1-v1.2.3.AppImage
2. app-name2-V999.2.31.AppImage
3. another-application-v123.456.789
4. yet-another-example-4-V0.0.1.extA
   对于上述示例，应用程序名称为：
   1.应用名称1
   1.应用名称2
   1.另一应用
5. yet-another-example-4
   版本号为：
6. 1.2.3
7. 999.2.31
8. 123.456.789
   1.零点零一
   这些扩展将是：
   1.“AppImage”
   1.“AppImage”
   1.“”我的天
   1.“extA”
   所有的文件名都有一个v或V开头的版本号，但可能有也可能没有扩展名。
   我尝试了以下在Google Bard的帮助下创建的脚本：

#!/bin/bash

# Function to parse a filename and separate out the base name, version number, and extension
function parse_filename() {
    # Get the base name of the file
    basename=${1##*/}

    # Get the extension of the file
    extension=${basename##*.}

  # Remove the extension from the base name
  basename=${basename%.*}

  # Get the version number of the file
  version=${basename##*-}

  # Strip any leading or trailing spaces from the base name and version number
  basename=${basename## }
  basename=${basename%% }
  version=${version## }
  version=${version%% }

  # If the version number is not in the form digits.digits.digits, then set the version number to an empty string
  if ! [[ "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
      version=""
  fi

  # If the version number is empty, then the version number is the extension
  if [[ -z "$version" ]]; then
      version="$extension"
  fi

  # If the base name is empty, then the base name is the filename without the extension
  if [[ -z "$basename" ]]; then
      basename=${1%.*}
  fi
}

echo "Running script: $0"

# Get the list of filenames from the user
filenames=("$@")

# Iterate over the list of filenames and parse each one
for filename in "${filenames[@]}"; do
    echo "Processing filename: $filename"
    # Parse the filename and get the base name, version number, and extension
    parse_filename "$filename"

  # Print the results to the: console
  echo "Base name: $basename"
  echo "Version number: $version"
  echo "Extension: $extension"
  echo
done

但这并不能产生正确的输出：

Running script: ./filename-parser.sh
Processing filename: name-of-application-1-v1.2.3.AppImage
Base name: name-of-application-1-v1.2.3
Version number: 
Extension: 

Processing filename: app-name2-V999.2.31.AppImage
Base name: app-name2-V999.2.31
Version number: 
Extension: 

Processing filename: another-application-v123.456.789
Base name: another-application-v123.456
Version number: 
Extension: 

Processing filename: yet-another-example-4-V0.0.1.extA
Base name: yet-another-example-4-V0.0.1
Version number: 
Extension:

这在bash脚本中是否可能，或者我需要求助于Python或其他东西。