Script to clear finished torrents from transmission-daemon

transmission_remove_finished.sh

#!/bin/bash

# Clears finished downloads from Transmission.
# Version: 1.1
#
# Newest version can always be found at:
# https://gist.github.com/pawelszydlo/e2e1fc424f2c9d306f3a
#
# Server string is resolved in this order:
# 1. TRANSMISSION_SERVER environment variable
# 2. Parameters passed to this script
# 3. Hardcoded string in this script (see below).

# Server string: "host:port --auth username:password"
SERVER="host:port --auth user:pass"

# Which torrent states should be removed at 100% progress.
DONE_STATES=("Seeding" "Stopped" "Finished" "Idle")

# Get the final server string to use.
if [[ -n "$TRANSMISSION_SERVER" ]]; then
    echo -n "Using server string from the environment: "
    SERVER="$TRANSMISSION_SERVER"
elif [[ "$#" -gt 0 ]]; then
    echo -n "Using server string passed through parameters: "
    SERVER="$*"
else
    echo -n "Using hardcoded server string: "
fi
echo "${SERVER: : 10}(...)"  # Truncate to not print auth.

# Use transmission-remote to get the torrent list from transmission-remote.
TORRENT_LIST=$(transmission-remote $SERVER --list | sed -e '1d' -e '$d' | awk '{print $1}' | sed -e 's/[^0-9]*//g')

# Iterate through the torrents.
for TORRENT_ID in $TORRENT_LIST
do
    INFO=$(transmission-remote $SERVER --torrent "$TORRENT_ID" --info)
    echo -e "Processing #$TORRENT_ID: \"$(echo "$INFO" | sed -n 's/.*Name: \(.*\)/\1/p')\"..."
    # To see the full torrent info, uncomment the following line.
    # echo "$INFO"
    PROGRESS=$(echo "$INFO" | sed -n 's/.*Percent Done: \(.*\)%.*/\1/p')
    STATE=$(echo "$INFO" | sed -n 's/.*State: \(.*\)/\1/p')
 
    # If the torrent is 100% done and the state is one of the done states.
    if [[ "$PROGRESS" == "100" ]] && [[ "${DONE_STATES[@]}" =~ "$STATE" ]]; then
        echo "Torrent #$TORRENT_ID is done. Removing torrent from list."
        transmission-remote $SERVER --torrent "$TORRENT_ID" --remove
    else
        echo "Torrent #$TORRENT_ID is $PROGRESS% done with state \"$STATE\". Ignoring."
    fi
done

FYI, for anyone that lands here from google, but is looking for a solution for dockerized transmission - such as Haugene's awesome transmission/openvpn docker - Here's a solution that worked for me...

Thank you, this is perfect.

I am very happy that you find my script useful. I have updated it a bit.
If you find any issues or have any wishes about the functionality you would like to see added, please let me know!

for me.. it's not working properly.
i'm using Transmission 2.94 (d8e60ee44f) on synology NAS.

error message
line 33: transmission-remote: command not found

error message
line 33: transmission-remote: command not found

This script only automates the "transmission-remote", which you need to have. On linux (Debian at least) this comes from the "transmission-cli" package. I tried a quick google search about how to get it on Synology NAS, but without luck.

It comes packaged in the Transmission app if you downloaded through the Package Manager. Can find it in /usr/local/transmission/bin

Does this script delete only the finished torrents or it deletes the downloaded data also?

Does this script delete only the finished torrents or it deletes the downloaded data also?

It only removes the transmission download. It does not touch the files.

Does this script delete only the finished torrents or it deletes the downloaded data also?

If you modify "transmission-remote $SERVER --torrent "$TORRENT_ID" --remove" you can change so it also removes the files :)

Running this script manually from the terminal, I get an error:

transmission_remove_finished.sh: 18: transmission_remove_finished.sh: Syntax error: "(" unexpected<

Any idea what I may be doing wrong?

#!/bin/bash
HAUGENE_ID=`/usr/bin/docker ps | grep "haugene" | awk '{print $1}'`
docker exec -e tmpUser=$RPC_U -e tmpPass=$RPC_P $HAUGENE_ID /shared/remove_finished

Most likely it was:

/shared/remove_finished_torrents

The script also applies to Transmission (vanilla):

#!/bin/bash
TRANSMISSION_ID=`/usr/bin/docker ps | grep "transmission" | awk '{print $1}'`
docker exec -e tmpUser=$RPC_U -e tmpPass=$RPC_P $TRANSMISSION_ID /shared/remove_finished_torrents

PS. For me it was crontab -e

Most likely it was:

/shared/remove_finished_torrents

Good catch. This was a typo. I just corrected it in the original comment.

The script also applies to Transmission (vanilla):

Glad it works for you. I've had this script running on my setup for roughly 2 years without issue.

PS. For me it was crontab -e

Ah yes, I copied the terminal output after the fact (crontab -l) rather than document how to actually edit it. 🙃