IT Glossary & Dictionary

A portion of disk storage used as virtual memory when physical RAM is fully utilized.

A special file that acts as a shortcut pointing to another file or directory in the filesystem.

A virtual filesystem that exports information about kernel subsystems, hardware devices, and device drivers in a structured hierarchy.

The primary command for managing systemd services, including starting, stopping, enabling, and checking service status.

A system and service manager for Linux that initializes the system and manages services, logging, and more.

A systemd unit that triggers services on a schedule or at specific events, serving as a modern alternative to cron jobs.

A utility for creating and extracting archive files that combine multiple files and directories into a single file.

A terminal multiplexer that allows running multiple terminal sessions within a single window, with detach/reattach capability.

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

A command that sets or displays resource limits for user processes, such as maximum open files or memory usage.

A command-line utility for downloading files from the web, supporting HTTP, HTTPS, and FTP protocols.

A command that builds and executes commands from standard input, useful for processing lists of items.