Knowledge & Memory Center

Removes stopped containers, unused networks, dangling images and the build cache in a single pass. The flags decide how much of your disk you get back — and how much you lose.

Test REST APIs from the terminal: CRUD with JSON, auth (Bearer, Basic, API key, cookies, mTLS), timing breakdown with -w, calling an endpoint 100× sequentially or in parallel with status tallies and p50/p95/p99, rate-limit checks and CI assertions.

Every way to install software on Ubuntu: a downloaded .deb (apt / dpkg / gdebi), official & vendor APT repos, PPA, Snap, Flatpak, AppImage, tarballs, source builds and language managers plus how to inspect, fix and remove packages.

Copies files and folders between a container and the host, in either direction. Works on stopped containers too.

Removes stopped containers, unused networks, dangling images and the build cache in a single pass. The flags decide how much of your disk you get back — and how much you lose.

The container starts, exits, and Kubernetes backs off before restarting it. The pod is a symptom the cause is almost always in the previous container log or the probe config.

Every core Markdown element (CommonMark) with its syntax: headings, emphasis, lists, links, images, code, quotes, tables and escaping. Save files as .md, UTF-8, LF line endings.