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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.

A virtual machine (VM) is a guest Operating System running in a completely isolated environment within a normal host operating system. Modern virtual machines are implemented with either software emul…
For questions pertaining to environment variables, a set of dynamic variables that can affect the running processes behavior and access to resources. Use this tag for questions about environment varia…
1529 questions
For questions pertaining to Domain Name System (DNS), a service that provides the resolution of host names to IP addresses. Use this tag when you are troubleshooting DNS issues, configuring a DNS reso…
1521 questions
A permanent data storage device used for storing and retrieving digital information using rapidly rotating discs (platters) coated with magnetic material in a rigid form factor (as opposed to floppy d…
I/O redirection is used in shell scripting. This feature enables one to take the output of a command and redirect it as an input for another command, or a command can take the input from a file instea…
In computing, memory refers to the state information of a computing system, as it is kept active in some physical structure.
hardware (or its representation by software) that connects a computing device (host) to a computer network (net)
Backing up is the process of making copies (a backup) of data which may be used to restore the original after a data loss event.
1408 questions
Sending, receiving, reading, composing, sorting, and generally working with email. For the mail(1) command line utility, see the tag /mail-command.
1376 questions
nvidia is used for question particular to the nVidia range of graphic boards/chips and their drivers. Use it only if you know for sure the problem is not a general graphics board issue (in that case u…
The ls command lists the contents of a directory.
1362 questions
Perl is a high-level, general-purpose, interpreted, dynamic programming language. It was originally developed by Larry Wall as a general-purpose Unix scripting language to make report processing easie…
1362 questions
tmux is a terminal multiplexer: it enables a number of terminals (or windows), each running a separate program, to be created, accessed, and controlled from a single screen. tmux may be detached from …
1352 questions
General keyboard topics, including keyboard hardware and keyboard functionality in software.
The process of logging in: from the login prompt, through user authentication, to session startup.
1297 questions
The tar archive format and/or the command-line utility for working with tar files.
1287 questions
To upgrade is to replace a piece of hardware or software with a better, and usually newer, version or component.
Questions regarding password-based authentication and password management
1237 questions
A lightweight desktop environment for UNIX-like operating systems.
1228 questions
refers to the action of giving a different name to either an existing file or to a copy of a file as part of some other operations (.e.g. remote copy, backup). Use this tag as well for …
1217 questions
A variable is a name, if correctly chosen with a symbolic meaning, that holds a value or values. Use this tag if your question is specific on the use of variables on shell scripting (if you want to as…
1216 questions
for questions about loading, configuring, or compiling them. See also /drivers for questions about which modules to use for specific hardware. A kernel module is a bit of code that can be…
1214 questions
File name is a name used to identify a file uniquely on given file system.
1206 questions
Solaris is a Unix operating system originally developed by Sun Microsystems (currently owned by Oracle) as a rebranding of SunOS 4.1.x in 1991.
1199 questions
The "root" account is the most privileged account on a Unix system.
1198 questions
used to classify questions about date/calendar/time manipulation, visualisation, conversion... on Unix-like systems.
1177 questions
Questions about the IP protocol and IP addresses. For Linux ip utility related questions, use iproute tag instead.
1176 questions
A special type of file that references an inexistent or existing file or directory. The contents of a symbolic link consist of an arbitrary string that is the path to the file that the symbolic link p…
Routing (in IP-based networks) is the process of selecting paths in a network along which to send network traffic.
1156 questions
Udev is a Linux process that manages device file entries under /dev
1112 questions
Globbing means matching files by name patterns containing wildcards.
1105 questions
Disk space usage: how much space do my files take?
RPM is a package management system intended primarily for Linux distributions.
A free software re-implementation of the SMB/CIFS networking protocol, which provides Windows file and print services. Use this tag when your question involves Samba shares, mounts, or printers.
1089 questions
NetworkManager is an application tool to simplify the multi network model on a single or multiple interfaces.
QEMU (short for "Quick EMUlator") is a free and open-source hosted hypervisor that performs hardware virtualization.
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