Script to create SSH deploy keys to github

github-ssh.sh

#!/bin/bash

# Install:
# wget https://gist.githubusercontent.com/eusonlito/39f15118cfa7a3fcab88cc80b4ef7ca8/raw/github-ssh.sh -O /usr/local/bin/github-ssh
# chmod 755 /usr/local/bin/github-ssh

# Usage:
# github-ssh "https://github.com/eusonlito/Password-Manager"

url="$1"

echo ""

if [ "$(echo $url | grep 'github.com')" == "" ]; then
    echo "This script require a github.com repository URL"
    exit 1
fi

repository=$(echo "$url" | sed 's#https://github.com/##')
code=$(echo "$repository" | sed 's#/#-#')

read -p "Do you want to create a SSH key to $repository repository? [y/n] " yn

if [ "$yn" != "y" ]; then
    echo "Bye!"
    echo ""
    exit 0
fi

host="$code.github.com"
file=$HOME"/.ssh/id_rsa_$host"

if [ -f "$file" ]; then
    echo ""
    echo "File $file already exists"
    exit 1
fi

ssh-keygen -t rsa -b 4096 -f "$file" -q -N ""

cat <<EOF >> $HOME"/.ssh/config"

Host $host
    Hostname github.com
    IdentityFile=$file

EOF

echo ""

cat "$file.pub"

echo ""

echo "git remote add origin git@$host:$repository.git"

echo ""

exit 0