'Transmission will not run shell script after torrent download completed
I am looking to have the Transmission bittorrent client execute a script that changes the owner and permissions of all torrents in the completed folder when a torrent completes downloading.
I am using the following relevant settings in /etc/transmission-daemon/settings.json:
"download-dir": "/data/transmission/completed",
"script-torrent-done-enabled": true,
"script-torrent-done-filename": "/home/user/script.sh",
The script does not seem to be executing after a torrent completes, I know there are other issues that could be going on aside the from the content of the script itself. The owner of the script file is debian-transmission and I have the permissions set to 777, so there shouldn't be an issues with Transmission accessing the script unless I have missed something here.
The /home/user/script.sh file is as follows:
#!/bin/bash
echo sudopassword | /usr/bin/sudo -S /bin/chmod -f -R 777 /data/transmission/completed
echo sudopassword | /usr/bin/sudo -S /bin/chown -f -R user /data/transmission/completed
I know it is poor form to use a sudo command in this fashion, but I can execute the script on it's own and it will work correctly. I am not sure why Transmission is not executing the script. Transmission supports some environment variables such as TR_TORRENT_NAME that I would like to use once the script is being triggered. Is there anything I am not setting up in the file that would prevent the script from working correctly and how would I use environment variables?
Solution 1:[1]
I'll probably answer a different question here, but if you're trying this simply to gain write permissions on your Transmission Daemon's downloads to your user, try a different approach.
I'm running my Transmission Daemon under my username, as set in it's systemd service file. (/etc/systemd/system/multi-user.target.wants/transmission-daemon.service in my case)
[Unit]
Description=Transmission BitTorrent Daemon
After=network.target
[Service]
User=myuser # set user here
Group=mygroup # set group here :)
UMask=0022 # 0022 gives 644 permissions on files (u+w), 0002 gives 644 (g+w), 0000 gives 666 (a+w)
Type=notify
ExecStart=/usr/bin/transmission-daemon -f --log-error
ExecStop=/bin/kill -s STOP $MAINPID
ExecReload=/bin/kill -s HUP $MAINPID
[Install]
WantedBy=multi-user.target
Notice User, Group and UMask (with capital M) directives.
See Execution environment configuration for Systemd manpage.
Then run:
sudo chown -fR user /data/transmission/completed
sudo systemctl daemon-reload
sudo service transmission-daemon restart
and you should set :)
Solution 2:[2]
Add the user who will execute the script to a group with default sudo access.
Fedora - add user to the wheel group
sudo usermod -aG wheel $(whoami)
Ubuntu - user group: sudo or admin (deprecated)
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | ?O 'delta zero' |
| Solution 2 |