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GNU Readline
GNU Readline is a software library that provides in-line editing and history capabilities for interactive programs with a command-line interface, such as GNU bash, Bash. It is currently maintained by Chet Ramey as part of the GNU Project. It allows users to move the text cursor, search the command history, control a kill ring (a more flexible version of a copy/paste clipboard) and use tab completion on a text terminal. As a cross-platform library, readline allows applications on various systems to exhibit identical line-editing behavior. Editing modes Readline supports both Emacs and vi editing modes, which determine how keyboard input is interpreted as editor commands. See . Emacs keyboard shortcuts Emacs editing mode Keyboard shortcut, key bindings are taken from the text editor Emacs. On some systems, must be used instead of , because the shortcut conflicts with another shortcut. For example, pressing in Terminal (Xfce), Xfce's terminal emulator window does not move the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brian Fox (computer Programmer)
Brian Jhan Fox (born 1959) is an American computer programmer and free software advocate. He is the original author of the GNU Bash (Unix shell), Bash shell (computing), shell, which he announced as a beta in June 1989. He continued as the primary maintainer of Bash until at least early 1993. Fox also built the first interactive online banking software in the U.S. for Wells Fargo in 1995, and he created an open source election system in 2008. Free Software Foundation In 1985, Fox worked with Richard Stallman at Stallman's newly created Free Software Foundation (FSF). At the FSF, Fox authored Bash (Unix shell), GNU Bash, texinfo, GNU Makeinfo, Info (Unix), GNU Info, Finger (protocol), GNU Finger, Echo (command), GNU Echo and the readline and history libraries. He was also the maintainer of GNU Emacs for a time, making many contributions to the software which was created and maintained for the GNU Project between 1986 and 1994. Open source election systems In 2008, Fox colla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emacs
Emacs (), originally named EMACS (an acronym for "Editor Macros"), is a family of text editors that are characterized by their extensibility. The manual for the most widely used variant, GNU Emacs, describes it as "the extensible, customizable, self-documenting, real-time display editor". Development of the first Emacs began in the mid-1970s, and work on GNU Emacs, directly descended from the original, is ongoing; its latest version is , released . Emacs has over 10,000 built-in commands and its user interface allows the user to combine these commands into macro (computer science), macros to automate work. Implementations of Emacs typically feature a dialect (computing), dialect of the Lisp (programming language), Lisp programming language, allowing users and developers to write new commands and applications for the editor. Extensions have been written to, among other things, manage Dired, files, Secure Shell, remote access, Gnus, e-mail, Org-mode, outlines, multimedia, Magit, Git ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Next
NeXT, Inc. (later NeXT Computer, Inc. and NeXT Software, Inc.) was an American technology company headquartered in Redwood City, California that specialized in computer workstations for higher education and business markets, and later developed web software. It was founded in 1985 by CEO Steve Jobs, the Apple Computer co-founder who had been forcibly removed from Apple that year. NeXT debuted with the NeXT Computer in 1988, and released the NeXTcube and smaller NeXTstation in 1990. The series had relatively limited sales, with only about 50,000 total units shipped. Nevertheless, the object-oriented programming and graphical user interface were highly influential trendsetters of computer innovation. NeXT partnered with Sun Microsystems to create a API, programming environment called OpenStep, which decoupled the NeXTSTEP operating system's application layer to host it on third-party operating systems. In 1993, NeXT withdrew from the hardware industry to concentrate on marketing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear (Unix)
is a computer operating system command which is used to bring the command line on top of the computer terminal. It is available in various Unix shells on Unix and Unix-like operating systems as well as on other systems such as KolibriOS. Depending on the system, clear uses the terminfo or termcap database, as well as looking into the environment for the terminal type in order to deduce how to clear the screen. The Unix command clear takes no arguments and is roughly analogous to the command cls on a number of other operating systems. ISO standard 9995-7 specifies that the following symbol be used to indicate this function on a keyboard, which is included in Unicode as: ⎚ CLEAR SCREEN SYMBOL. One may use the reset command to erase every previous command. History The clear command appeared in 2.79BSD on February 24, 1979. Later, in 1985, the command was also included in Unix 8th edition. See also * List of Unix commands This is a list of the shell commands of the most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clipboard (software)
The clipboard is a buffer that some operating systems provide for short-term storage and transfer within and between application programs. The clipboard is usually temporary and unnamed, and its contents reside in the computer's RAM. The clipboard provides an application programming interface by which programs can specify cut, copy and paste operations. It is left to the program to define methods for the user to command these operations, which may include keybindings and menu selections. When an element is copied or cut, the clipboard must store enough information to enable a sensible result no matter where the element is pasted. Application programs may extend the clipboard functions that the operating system provides. A clipboard manager may give the user additional control over the clipboard. Specific clipboard semantics vary among operating systems, can also vary between versions of the same system, and can sometimes be changed by programs and by user preferences. Windows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
End Key
The key is a key commonly found on desktop and laptop keyboards. The key has the opposite effect of the Home key. In some limited-size keyboards where the key is missing the same functionality can be reached via the key combination of or Control + End keys Its standard symbol as described in ISO/IEC 9995-7, i.e. , is used on some full-size keyboards instead of a possibly localized text label. Microsoft Windows In modern Microsoft Windows text editing applications, the key is primarily used to move the cursor to the end of the line in which it is positioned. When the text is not editable, it is used to scroll to the end of the document; this can also be done in editable text if the key is pressed along with . The key can also be used to highlight all the characters after the cursor in a certain line if pressed along with in editable text. macOS In most macOS applications, the key works differently than on other platforms. When the key is pressed, the window scrolls t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delete Key
The delete key (often abbreviated del) is a button on most computer keyboards which is typically used to delete either (in text mode) the character ahead of or beneath the cursor, or (in GUI mode) the currently-selected object. The key is sometimes referred to as the "forward delete" key. This is because the backspace key also deletes characters, but to the left of the cursor. On many keyboards, such as most Apple keyboards, the key with the backspace function is also labelled "delete". Position and labeling on keyboards The key appears on English-language IBM-compatible PC keyboards labeled as or , sometimes accompanied by a crossed-out right-arrow symbol. A dedicated symbol for "delete" exists as U+2326 ⌦ but its use as a keyboard label is not universal. However, sometimes the key labelled performs the Backspace function instead, for example on some Apple keyboards. In other cases, the Delete key is in its original IBM notebook position of above and to the right of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exit (command)
In computing, exit is a command used in many operating system command-line shells and scripting languages. The command causes the shell or program to terminate. If performed within an interactive command shell, the user is logged out of their current session, and/or user's current console or terminal connection is disconnected. Typically an optional exit code can be specified, which is typically a simple integer value that is then returned to the parent process. Implementations Operating systems, shells, and scripting languages providing this command include Microsoft MSX-DOS version 2, IBM OS/2, DR FlexOS, HP MPE/iX, KolibriOS, SymbOS, cmd.exe, sh, ksh, Perl, AWK, PHP, TCL, PowerShell, and others. On MS-DOS, the command is available in versions 2 and later. DR DOS 6.0 and Datalight ROM-DOS also include an implementation of the command. It is also available in the open source MS-DOS emulator DOSBox. The numerical computing environment MATLAB includes an exit functio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stty
This is a list of the Shell (computing), shell command (computing), commands of the most recent version of the Portable Operating System Interface (POSIX) Institute of Electrical and Electronics Engineers, IEEE Std 1003.1-2024 which is part of the Single UNIX Specification (SUS). These commands are implemented in many shells on modern Unix, Unix-like and other operating systems. This list does not cover commands for all versions of Unix and Unix-like shells nor other versions of POSIX. See also * GNOME Core Applications * GNU Core Utilities * List of GNU packages * List of KDE applications * List of Unix daemons * Unix philosophy * util-linux, References External links IEEE Std 1003.1,2004 specificationsIEEE Std 1003.1,2008 specificationsIEEE Std 1003.1,2024 specifications– configurable list of equivalent programs for *nix systems. – explains the names of many Unix commands. {{Unix commands Lists of software, Unix programs System administration Unix SU ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudoterminal
In some operating systems, including Unix-like systems, a pseudoterminal, pseudotty, or PTY is a pair of pseudo-device endpoints (files) which establish an asynchronous, bidirectional communication (IPC) channel (with two ports) between two or more processes. One pseudo-device in the pair, the ''master'', provides means by which a terminal emulator or remote login server (e.g. a Telnet, rlogin, or Secure Shell server) process controls the slave. The other pseudo-device, the ''slave'', emulates a hardware serial port device, and is used by terminal-oriented programs such as shells (e.g. bash) as a processes to read/write data back from/to ''master'' endpoint. PTYs are similar to bidirectional pipes. Devpts is a Linux kernel virtual file system containing pseudoterminal devices. Linux implementation is based on System V-style terminals (commonly referred as UNIX 98 pseudoterminals) and provides POSIX and the Single Unix Specification API in the form of a function since 1998. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SIGINT (POSIX)
Signals are standardized messages sent to a running program to trigger specific behavior, such as quitting or error handling. They are a limited form of inter-process communication (IPC), typically used in Unix, Unix-like, and other POSIX-compliant operating systems. A signal is an asynchronous notification sent to a process or to a specific thread within the same process to notify it of an event. Common uses of signals are to interrupt, suspend, terminate or kill a process. Signals originated in 1970s Bell Labs Unix and were later specified in the POSIX standard. When a signal is sent, the operating system interrupts the target process's normal flow of execution to deliver the signal. Execution can be interrupted during any non-atomic instruction. If the process has previously registered a signal handler, that routine is executed. Otherwise, the default signal handler is executed. Embedded programs may find signals useful for inter-process communications, as signals ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arrow Keys
Arrow keys or cursor movement keys are keys on a computer keyboard that are either programmed or designated to move the cursor (computers), cursor in a specified direction. The term "cursor movement key" is distinct from "arrow key" in that the former term may refer to any of various keys on a computer keyboard designated for cursor movement, whereas "arrow keys" generally refers to one of four specific keys, typically marked with arrows. Arrow keys are typically located at the bottom of the keyboard to the left side of the numeric keypad, usually arranged in an inverted-T layout but also found in diamond shapes and linear shapes. Arrow keys are commonly used for navigating around documents and for playing games. The inverted-T layout was popularized by the Digital Equipment Corporation LK201 keyboard from 1982. Historical development Before the computer mouse was widespread, arrow keys were the primary way of moving a cursor on screen. Mouse keys is a feature that allows c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
