A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

The CPU (Central Processing Unit), is the chip in the computer that actually performs the operations and calculations that are done as a program runs. It is essentially what executes a program.
devices refers to questions about the Unix/Linux device special files, normally these are under /dev. Do not use this tag for physical devices (for that use e.g. usb or pci).
General questions about hardware under Linux/Unix. Use a more specific tag if applicable.
822 questions
A feature provided by interactive programs such as shells and text editors that inserts text to complete a word or phrase that the user is likely intending to compose.
822 questions
/etc/fstab is the configuration file which contains the information about all available partitions and indicates how and where they are mounted.
819 questions
Version 3 of the GNOME desktop environment
818 questions
The Korn shell (ksh) is a shell with advanced scripting features, commonly found on commercial unices and some BSD systems but rarely used on Linux.
810 questions
A volume-managing, snapshot-supporting copy-on-write (COW) filesystem included in the Linux kernel.
RAID - Redundant Array of Independent Disks. A Storage technology to provide redundancy and performance, to reduce I/O bottlenecks involved in using multiple disks for large storage.
The use of Unix in embedded computer systems such as networking equipment, mobile phones, media players, set-top boxes, etc.
791 questions
String manipulation: extracting a part of a string, text replacement, formatting to a given width, etc.
790 questions
Questions specific to LUKS (Linux Unified Key Setup) disk-encryption specification in general, such as setup questions or questions about how LUKS works. Use this tag if your question directly involve…
National keyboard layouts, relocating control keys, etc., generally at the operating system level. See /keyboard-shortcuts for key mappings in applications.
783 questions
The base software for Debian/Ubuntu/Mint package management. Use this tag for questions about dpkg and its companion utilities and the .deb file format.
782 questions
A free and open source web browser created by Mozilla.
777 questions
Secure Copy or SCP is a means of securely transferring computer files between a local and a remote host or between two remote hosts.
776 questions
cp - Command-line tool to copy a file
773 questions
Questions about the OpenSSH implementation of the ssh protocol.
770 questions
The startup sequence, from the time the kernel goes live to when all services are up and running.
ALSA (Advanced Linux Sound Architecture ) is an API of audio functions for the linux platform.
762 questions
Any storage device with a USB interface (USB stick, USB hard disk, …).
Postfix is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program.
760 questions
Obtaining real-time values of system parameters or events (processor load, server responsiveness, intrusion attempts, …), or getting alerted when certain events happen
744 questions
recall commands previously typed in a shell or other utility
741 questions
Google Chrome is a proprietary web browser developed and released by Google. Most of its source code is shared with their Chromium project from which the free software (BSD-licensed) Chromium browser …
737 questions
A protocol used for low-range, low-power, low-speed communication between devices (phones, keyboard, mice etc...).
Questions regarding GNU Compiler Collection Suite.
nginx is an open-source Web server and a reverse proxy for HTTP, SMTP, POP3 and IMAP protocols, aimed at high performance and low memory usage.
the secure shell (SSH) daemon
721 questions
A repository refers to a data structure, usually stored remotely on a server, that contains files and directories as well as a corresponding historical record of the changes that were applied to the d…
721 questions
A font is an entire set of glyphs that make up a typeface. Installing a font allows the user to use that font in order to change the appearance of text on an output device such as a screen or printer.
A boot loader (aka bootstrap loader) is the program that loads up the operating system kernel (or another boot-loader), e.g., GNU GRUB, LILO, SYSLINUX, or rEFInd. Use this tag for questions about ins…
713 questions
AIX (Advanced Interactive eXecutive, pronounced "a i ex") is a series of proprietary Unix operating systems developed and sold by IBM for several of its computer platforms.
706 questions
should be limited to questions pertaining to the peripheral input device known as a "mouse".
701 questions
gpg is the main command line tool of the GNU Privacy Guard (GnuPG), implementing the OpenPGP standard for public key cryptography. It allows encryption, (verification of) signatures and trust models l…
xargs is a command that executes another command and generates its arguments from stdin
697 questions
3 4
6 7