How to run a shell script with the current line or block of code as argument in Visual Studio Code?

Is there a way to achieve something similar to "Python: Run Selection/Line in Python Terminal " but where the current line of code, or block of code, is passed as an argument to a configurable shell script?

You can use the extension Command Variable to pass the selected text to the task command

{
  "version": "2.0.0",
  "tasks": [
    {
      "label": "echo selected text",
      "type": "shell",
      "command": "echo",
      "args": [ "${input:selectedText}" ],
      "problemMatcher": []
    }
  ],
  "inputs": [
    {
      "id": "selectedText",
      "type": "command",
      "command": "extension.commandvariable.transform",
      "args": {
        "text": "${selectedText}"
      }
    }
  ]
}

If needed you can add some arguments to the ${selectedText} variable.

You can directly use the variable ${selectedText} in a keybinding that sends a command to the terminal:

{
  "key": "alt+t",         // whatever you want for a keybinding
  "command": "workbench.action.terminal.sendSequence",
  "args": {
    "text": "echo '${selectedText}'\u000D"
  }
}

\u000D is a return so the command runs immediately.

Or try this keybinding to select the current line first and send that to the terminal:

{
  "key": "alt+t",
  "command": "runCommands",
  "args": {
    "commands": [
      "cursorHome",
      "cursorEndSelect",
      {
        "command": "workbench.action.terminal.sendSequence",
        "args": {
          "text": "echo '${selectedText}'\u000D"
        }
      }
    ]
  }
}

Or in a task:

"tasks": [
  {
    "label": "echoMe",
    "type": "shell",

    "command": "echo ${selectedText}",
    "args": [
      
    ]
  }
]