Full path to the folder where the currently active file in Visual Studio Code

I want to create a task in Visual Studio Code, but I need a path to the actual file. Is there some option?

My task:

{
    "version": "0.1.0",
    "command": "${workspaceRoot}/run.sh",
    "isShellCommand": true,
    "options": {
        "cwd": "${hereINeedPathToActualFile}"
    },
    "args": ["${file}"],
    "showOutput": "always"
}