The Only 30 Docker Commands You Actually Need — A Reference I Wish I Had on Day One

I've used Docker every working day for years, and here's the honest truth: most developers learn maybe five commands (run, build, ps, logs, exec) and then never go deeper. That's like owning a Swiss army knife and only ever using the bottle opener. After debugging enough "works on my machine" fires, slow CI builds, and mystery "no space left on device" errors, I settled on a set of about 30 patterns that cover 95% of real daily work. Below is the cheat sheet I wish someone had handed me on day o