Abbreviations in Linux

I accidentally saw a ZZ

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Exploring ancient acronyms in Linux
Unix has been around for 35 years. Many people think that it began in the Middle Ages, which was relative to the generation and development of computer technology. In the past, UNIX and its sub-branches
Linux collection has many historical and completely old languages. In this article, we will introduce a few ancient languages and their purposes and functions, as well as their real sources.

RC

In Linux, the most common abbreviation may be "RC", which is the abbreviation of "runcomm"-the term "run"
Short for "command" (run command. Today, "RC" is the suffix of any script file. These scripts are usually called at the startup stage of the program, usually when the Linux system is started. For example
/Etc/RS is the main script started in Linux, while. bashrc is the bash
The script run after the shell is started .. The bashrc prefix "." is a naming standard designed to hide special Files specified by users in user files. By default, the "ls" command
Such files are not listed, and "RM" will not delete them by default. Many programs require an initial file or configuration file with the suffix "RC" when starting.
There is nothing mysterious.

Etc

In "ETC/bin", "etc" actually represents "Etcetera ). In earlier Unix systems, the most important directory was the "bin" directory.
("Bin" is the binary file "binaries"-the abbreviation of the compiled program). "etc" contains trivial programs, such as startup, shutdown, and management. Required to run a Linux
The list of things is: a binary program, etcetera, etcetera-in other words, it is an important underlying project, and usually adds important pieces of things such as sub-items. Today
"Etc" contains a wide range of system configuration files. These configuration files include almost all aspects of system configuration, and are equally important.

Bin

Today, many large subsystems running on Linux, such as gnome or Oracle, are compiled into programs using their own "bin" directories (or/usr/bin, or
Is/usr/local/bin) as the standard storage location. Similarly, the script file can be seen in these directories, because the "bin" directory is usually added to the user's path.
They can use the program normally. Therefore, the running script usually runs well in the bin.

Tty

In Linux, tty may be the most confusing term related to the terminal. Tty is an old abbreviation of teletype. Teletypes, or
Teletypewriters, originally referred to as a telex typewriter, is reading and sending information via a printer keyboard through a serial line. It is not very different from the old telegraph machine. After, when
The computing machine can only run in batch mode (The punched card reader was the only way to load and run the program ), the telex typewriter is the only "real-time" input/output device that can be used. Final, telex
The typewriter is replaced by a keyboard and display terminal, but the operating system still needs a program to monitor the serial port where the terminal or TTY is plugged in. A Getty "get
The processing process of tty is: a program monitors the physical tty/Terminal interface. For a virtual network frustrated server (VNC), a disguised tty is
Tty, also called "Pty") is an equivalent terminal. When you run an xterm (terminal simulation program) or GNOME terminal program, Pty
A Pseudo Terminal is like a tty running. "Pseudo" means "duplicating in a fake
Way, which is more accurate than "virtual" or "emulated. In the current computing, it is in the stage of being abandoned.

Dev

The commands left from tty include "stty", which is "Set
Tty (set TTY), which can generate a configuration file/etc/initab ("Initialization
Table) to configure the serial port used by Gettys. In modern times, the only terminal directly attached to a Linux window is usually the console. Because it is a special tty
Name it "console ". Of course, once you start X11, "console" tty will disappear and you will no longer be able to use the serial port protocol. All tty files are stored in the "/dev" directory.
Recording, which is "[physical]
The abbreviation of devices ([physical] device. In the past, you had to manually modify and configure each device file when accessing a new terminal in the serial port behind the computer. Now, Linux (and
UNIX) during the installation process, the files of each device that it can wizard are created in this directory. That is to say, you rarely need to create it yourself.

As the hardware moves out of the computer, these names become even more vague. Fortunately, today's high-level software blocks on Linux are easy to understand for history and hardware usage. For example, well, pango (http://www.pango.org/) is one of them.

If you are interested in this content, I suggest you read the grand one, but some jargon files, written by Eric S. Raymond, are centered on the history of American English. It does not explain all the terms used in UNIX, but it gives a general picture of these forms.