Shell script downloading videos embedded in tweets

dl-twitter-video

#!/bin/bash

# Usage: $0 TWEET_URL <DEST_FILE>
# If the second parameter is omitted, the video is saved to a timestamped file
  
DLWD_URL=https://www.savetweetvid.com/fr/downloader
TWEET_URL=$1
DEST_FILE=$2

if [ "$TWEET_URL" = "--help" ] || [ "$TWEET_URL" = "-h" ]
then
	echo "- Usage: $0 TWEET_URL <DEST_FILE>"
	echo "- If the second parameter is omitted, the video is saved to a timestamped file"
	exit 0
fi

# First argument

if [ -z "$TWEET_URL" ]
then
	echo "- Missing 'URL' parameter! Use option '-h' or '--help'..."
	exit 1
fi

# Second argument

if [ -z "$DEST_FILE" ]
then
	OUTPUT_FILE=`date +%F-%s`.mp4
else
	OUTPUT_FILE=$DEST_FILE
fi

# Get video URL

echo "+ Fetching video URL..."
VIDEO_URL=`curl -s -d "url=${TWEET_URL}" ${DLWD_URL} | grep 'text:' | cut -d\" -f2`

# Download video

if [ -z "$VIDEO_URL" ]
then
	echo "- Cannot find video URL :-/"
	exit 2
else
	echo "+ Source: ${VIDEO_URL}"
	echo "+ Destination: ${OUTPUT_FILE}"
	echo "+ Downloading..."
	wget -q -O ${OUTPUT_FILE} ${VIDEO_URL}
	touch ${OUTPUT_FILE}
	echo "+ Done"
fi