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Mar 03, 2026

What You Need to Know About Inodes in Linux: A Practical Guide

Inode in Linux — how to check the number, find overflow using df -i, find a file by inode, hard link operation, and restore deleted files via /proc.

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Mar 02, 2026

How to Get a List of Tables in MySQL: SHOW TABLES, LIKE, information_schema

SHOW TABLES, SHOW FULL TABLES, filtering with LIKE, information_schema queries, and getting the table list from bash without entering the MySQL shell.

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947

Mar 02, 2026

The usermod Command in Linux: Renaming, Groups, UID, and Shell

usermod — modifying Linux user account parameters. Renaming, changing home directory with file migration, adding to groups, locking accounts, and changing the login shell.

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1,244

Mar 02, 2026

How to Disable the sudo Password in Linux: NOPASSWD for User, Commands, and Group

The NOPASSWD directive in sudoers — disable the sudo password for a user, specific commands, or a group. Editing via visudo and sudoers.d with result verification.

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2,324

Mar 02, 2026

How to Log In as Root in Ubuntu: sudo -i, Password, SSH, and GUI Login

Logging in as root in Ubuntu via sudo -i and sudo su, setting a root password, enabling SSH access and graphical login via GDM — with a security risk explanation.

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3,297

Mar 02, 2026

How to Delete All Files in a Folder in Linux: rm, find, and rsync

rm, find with filters by extension and age, hidden files, rsync --delete for fast cleanup. How to preview before deleting and common mistakes to avoid.

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2,131

Mar 02, 2026

How to Check Temperature in Linux and Monitor It: lm-sensors, hddtemp, psensor

Monitoring CPU, disk, and GPU temperature in Linux — lm-sensors, sensors-detect, hddtemp, smartctl, sysfs, and psensor with graphs and notifications. Reference temperature values included.

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2,187

Mar 02, 2026

How to Make a File Executable in Linux: chmod and GUI

The execute flag in Linux — how to add it via chmod, numeric permissions, recursive setup with find, checking with ls -l, and the GUI method via Nautilus.

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1,360

Mar 02, 2026

How to Install Cursor Themes in Linux: GNOME, KDE, and Xfce

Installing cursor themes in Linux from a repository and manually. How to apply a theme in GNOME, KDE Plasma, and Xfce — with commands and solutions to common problems.

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2,114

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