Download files from GitHub Gist

download_files_from_gist.sh

#!/bin/bash

# Simple script to download files from a GitHub Gist.
# Script will prompt for a Gist URL (e.g. https://gist.github.com/username/gistId.git), then display the files available to download, alongside row numbers. 
# NB: Multiple files can be downloaded at once by entering the row numbers separated by spaces.

# Get Gist URL from the user
echo "Enter the Gist URL:"
read gistUrl

# Strip .git from the URL to get the Gist ID
gistId=${gistUrl%.git}
gistId=${gistId##*/}

# Fetch details about the Gist using the GitHub API
apiUrl="https://api.github.com/gists/$gistId"

# Extract the file information using curl and jq
fileList=$(curl -s "$apiUrl" | jq -r '.files | keys | .[]')

# Create an array of filenames and display the options.
declare -a fileArr
i=1
echo "Available Files:"
while IFS= read -r line
do
    echo "$i: $line"
    fileArr[i]=$line
    i=$((i+1))
done <<< "$fileList"

# Ask the user which files they want to download.
echo "Enter the numbers of the files to download (separated by spaces):"
read -a fileNums

# Download the selected files with curl.
for num in "${fileNums[@]}"
do
    selectedFile=${fileArr[$num]}
    rawGistUrl="https://gist.githubusercontent.com/raw/$gistId"
    curl -O "$rawGistUrl/$selectedFile"
    echo "Downloaded $selectedFile"
done