I can't live without `sudo` :p - `ffmpeg` one utility for video manipulation to rule them all. - `ping` to check whether I am connected to the interne

I can't live without `sudo` :p - `ffmpeg` one utility for video manipulation to rule them all. - `ping` to check whether I am connected to the internet or not. - `curl -vvv maktabkhooneh.org` to check where is the connection problem happens. - `howdoi` search StackOverflow for snippets to solve your problem from the command line.