Scripts used locally to run mundane tasks or perform checks regularly using tools like cron.
Checks the internet connection speed and if below a certain threshold, will send a tweet to e.g. the internet provider along with the image containing the speed test results. Can make this run on a Raspberry Pi quite easily.
This requires two non-standard package installations:
This is required because modern (public) IP4 addresses are dynamic - changing roughly once per day. Attains the local public IP address of a machine and writes it to a log file in a dynamically synchronised folder (e.g. Dropbox, Google Drive), from where it can be read and used for remote ssh connection.
It retrieves the IPv4 address of a machine from one of a few possible online resources, checks whether or not the obtained IP is different to the last recorded, and if so updates a file that logs all recorded IP addresses.
A simple bash function can be used to parse the most recent IP address from said file, and paste that into an ssh command, along with any other required settings.