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GNU Readline is a software library that provides in-line editing and history capabilities for interactive programs with a command-line interface, such as Bash.It is currently maintained by Chet Ramey as part of the GNU Project.
In computing, Bash (Bourne Again Shell) [7] is a Unix shell and command language first developed for the GNU Project [8] by Brian Fox, supported by the Free Software Foundation. [ 9 ] [ 10 ] Designed as a 100% [ 11 ] free software alternative for the Bourne shell , [ 12 ] [ 13 ] [ 14 ] it was initially released in 1989. [ 15 ]
Support for command history means that a user can recall a previous command into the command-line editor and edit it before issuing the potentially modified command. Shells that support completion may also be able to directly complete the command from the command history given a partial/initial part of the previous command.
The Xterm terminal emulator. In the early 1980s, large amounts of software directly used these sequences to update screen displays. This included everything on VMS (which assumed DEC terminals), most software designed to be portable on CP/M home computers, and even lots of Unix software as it was easier to use than the termcap libraries, such as the shell script examples below in this article.
The C shell also introduced many features for interactive work, including the history and editing mechanisms, aliases, directory stacks, tilde notation, cdpath, job control and path hashing. On many systems, csh may be a symbolic link or hard link to TENEX C shell (tcsh), an improved version of Joy's original version. Although the interactive ...
This functions similarly to Bash's Ctrl+R history search, but is always on, giving the user continuous feedback while typing commands. Fish also includes feature-rich tab completion , with support for expanding file paths (with wildcards and brace expansion ), environment variables , and command-specific completions.
Whip up this goat cheese–tomato toast to enjoy the fresh flavors of summer any time of the year. This sweet-and-savory combo makes a perfect breakfast, lunch or snack.
Each process takes input from the previous process and produces output for the next process via standard streams. Each | tells the shell to connect the standard output of the command on the left to the standard input of the command on the right by an inter-process communication mechanism called an (anonymous) pipe, implemented in the operating ...