Files, Search, and Storage

Understand the map of the file system well enough to recognize Windows drive-letter paths, Linux root-tree paths, and the difference between a file name and the data behind it.

Read files safely from the terminal, inspect the beginning or end of long output, and search inside text without opening a GUI editor.

Find programs and files in a way that matches the real problem: command lookup, live recursive search, or fast indexed search.

Understand how disks, partitions, filesystems, and mount points fit together so storage changes make sense before any formatting or mounting commands are used.

Inspect storage devices and mount points from the command line, and understand which commands are observational versus potentially destructive.

Use the graphical file manager to build a reliable spatial map of paths, hidden files, and frequent locations before translating those actions to the command line.

Navigate the standard Linux directory tree well enough to predict where configs, logs, programs, and user files usually live.

Inspect common files inside /etc in read-only mode so you can recognize system configuration safely and confidently.

Inspect /var safely so you can find changing data such as logs and understand how to read it without making the situation worse.

Read basic live system information from /proc and /sys so you understand that Linux exposes many hardware and kernel details as files.

Understand files, folders, paths, roots, and mounts as one navigable structure instead of isolated commands.

See disks, partitions, filesystems, mounts, and external drives as a layered storage model instead of a list of admin tools.

Inspect an external disk first, then mount it deliberately without confusing the device, partition, filesystem, and mount point layers.