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Linux Beginner

What is Top/Htop?

Interactive process viewers that display real-time system resource usage including CPU, memory, and running processes.

Top is the classic process monitor showing CPU, memory, swap, and per-process statistics in real-time. Htop is an improved version with color coding, mouse support, tree view, and easier process management.

Key information includes load average, CPU per core, memory usage, and process lists sortable by CPU%, MEM%, or time. Press k to kill a process, f to filter, and t for tree view (htop). Essential for identifying resource-hungry processes.

Related Terms

File Permissions
A security mechanism that controls who can read, write, or execute files and directories in Unix-like systems.
Firewalld
A dynamic firewall management tool for Linux that provides a D-Bus interface for managing firewall rules with zones.
Rsync
A fast, versatile file synchronization tool that efficiently transfers and syncs files between local and remote systems.
Sysfs (/sys)
A virtual filesystem that exports information about kernel subsystems, hardware devices, and device drivers in a structured hierarchy.
LVM (Logical Volume Manager)
A storage management framework that provides flexible disk management through abstract layers of physical and logical volumes.
GRUB
The Grand Unified Bootloader, a program that loads the operating system kernel into memory during system startup.
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