bash script to easily change Discord Bot avatar

avatar.sh

#!/bin/bash
if [ -z "$1" ]
  then
    echo "Usage: $0 your-image.jpg"
    exit
fi

# get your "Bot" token from
# https://discordapp.com/developers/applications/

token="<bot-token-goes-here>"
b64=$(base64 -w 0 $1)
avatar="data:image/jpeg;base64,"$b64

(echo -n "{\"avatar\": \"$avatar\"}") | curl -H "Authorization: Bot $token" -H "Content-Type: application/json" -X PATCH -d @- https://discordapp.com/api/users/@me