🐧 Linux Tutorials

Find out what is consuming your disk space — from a quick filesystem overview down to the exact directory or file responsible.

The most useful curl commands for developers — GET, POST, headers, auth, file downloads, timing requests, and debugging HTTP APIs from the terminal.

Stop getting "address already in use" errors. Find what is holding a port and remove it in seconds.

The actions that matter most in the first hour after provisioning a new server — before it gets hammered by bots and before something goes wrong.

A step-by-step guide to scheduling automated tasks with cron on any Linux system.

Copy, sync, and back up files locally or over SSH with rsync. Includes the most useful flags, real examples, and common pitfalls with trailing slashes.

Read the permission string on any file, change who owns it, and understand what umask does to files you create.

Connect a remote NFS export to your Linux machine, verify it works, then add it to /etc/fstab so it survives reboots without hanging the system.

Why and how to migrate a cron entry to a systemd timer for better logging, dependency handling, and missed-run recovery.

Generate a modern SSH key pair, install it on a remote host, and lock password login out entirely.

Keep processes running after you disconnect, split your terminal into panes, and switch between projects without opening a new window.