Category: Linux

Learn how to use the Linux du command to measure and summarize disk space used by files and directories, with essential options, practical examples, output interpretation, and common troubleshooting tips.

Browse essential Linux commands by task, including help, files, text processing, permissions, processes, networking, packages, storage, and system administration.

Learn how to use the Linux watch command to rerun a command at regular intervals and highlight changing output, with essential options, practical examples, output interpretation, and common troubleshooting tips.

Learn how to use the Linux sftp command to transfer and manage files securely through an SSH connection, with essential options, practical examples, output interpretation, and common troubleshooting tips.

Learn a safe Linux disk-management workflow for identifying devices, creating partitions and filesystems, mounting storage, and configuring persistent mounts.

Learn how to use the Linux wc command to count lines, words, characters, and bytes in files or standard input, with essential options, practical examples, output interpretation, and common troubleshooting tips.

Learn how to use the Linux last command to review user login sessions, system reboots, and shutdown history, with essential options, practical examples, output interpretation, and common troubleshooting tips.

Learn how to check private and public IP addresses on Linux, identify the active interface and route, and distinguish IPv4, IPv6, and externally visible addresses.

Learn how to use the Linux screen command to keep terminal sessions running and reconnect to them later, with essential options, practical examples, output interpretation, and common troubleshooting tips.

Understand how Bash operators run commands sequentially, conditionally, in the background, or through pipelines, with practical examples and precedence guidance.