software recommendation - Which torrent client has command line arguments to start/stop downloads?

first of all, I want to create shell script to start/stop downloads in torrent client. I don't need CLI but if you know how I can do that with CLI using shell script then it is okay.

I use jDownloader which is GUI based application but has some command line arguments as below which I use to start/stop download.

-h/--help       Show this help message
-a/--add-link(s)    Add links
-co/--add-container(s)  Add containers
-d/--start-download Start download

-D/--stop-download  Stop download
-H/--hide       Don't open Linkgrabber when adding Links
-m/--minimize       Minimize download window
-f/--focus      Get jD to foreground/focus
-s/--show       Show JAC prepared captchas
-t/--train      Train a JAC method
-r/--reconnect      Perform a Reconnect
-C/--captcha   Get code from image using JAntiCaptcha
-p/--add-password(s)    Add passwords
-n --new-instance   Force new instance if another jD is running

So I can easily start/stop download as follows,

jdownloader --start-download
jdownloader --stop-download

now I want torrent client to do that through shell script.

I use Flush to start or stop torrent downloads of running instance through terminal.

I can use these options with flush.

  --start={all,downloads,uploads}     Start torrents  
  --stop={all,downloads,uploads}      Stop torrents

---

Command line options for other torrent clients

1. Deluge have very few options

Usage: deluge-gtk [options]

Options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit


  Common Options:
    -c CONFIG, --config=CONFIG
                        Set the config folder location
    -l LOGFILE, --logfile=LOGFILE
                        Output to designated logfile instead of stdout
    -L LOGLEVEL, --loglevel=LOGLEVEL
                        Set the log level: none, info, warning, error,
                        critical, debug
    -q, --quiet         Sets the log level to 'none', this is the same as `-L
                        none`

2. For Transmission

Usage:
  transmission-gtk [OPTION...] [torrent files or urls]

Help Options:
  -h, --help               Show help options
  --help-all               Show all help options

  --help-gtk               Show GTK+ Options

GTK+ Options
  --class=CLASS            Program class as used by the window manager
  --name=NAME              Program name as used by the window manager
  --screen=SCREEN          X screen to use
  --sync                   Make X calls synchronous
  --gtk-module=MODULES     Load additional GTK+ modules
  --g-fatal-warnings       Make all warnings fatal


Application Options:
  -p, --paused             Start with all torrents paused
  --version                Show version number and exit
  -m, --minimized          Start minimized in notification area
  -g, --config-dir         Where to look for configuration files
  --display=DISPLAY        X display to use

3. qbittorrent options

Usage:
    qbittorrent --version: displays program version
    qbittorrent --no-splash: disable splash screen
    qbittorrent --help: displays this help message
    qbittorrent --webui-port=x: changes the webui port (current: 8080)
    qbittorrent [files or urls]: downloads the torrents passed by the user (optional)