Extract name from torrent and rename .torrent file

rename-torrent.sh

#!/bin/bash
# Usage: rename-torrent.sh /path/to/torrents /path/to/output
# 
# read-torrent must be installed
# npm install -g read-torrent

if [[ -z $1 ]]; then
    echo "No input path specified!"
    exit 1
else
    inputPath="$1"
fi

if [[ -z $2 ]]; then
    echo "No output path specified; creating directory..."
    outputPath="done"
    if [[ ! -d "$outputPath" ]]; then
        mkdir "$outputPath"
    fi
else
    outputPath="$2"
fi

for filename in "$inputPath/*"; do

    echo "Reading $filename"

    torrentID=$(basename "$filename")
    torrentName=$(read-torrent "$filename" | head -4 | grep name | sed 's/name:      //' | sed 's/\///')

    echo "Name: $torrentName"

    mv "$filename" "$outputPath/$torrentName - $torrentID"

done