When was csh invented
The C shell (csh or the improved version, tcsh) is a Unix shell created by Bill Joy while he was a graduate student at University of California, Berkeley in the late 1970s. It has been widely distributed, beginning with the 2BSD release of the Berkeley Software Distribution (BSD) which Joy first distributed in 1978.
Who developed the C shell
Bill Joy
The C shell was developed for Berkeley Software Distribution (BSD) UNIX systems by Bill Joy while he was a graduate student at the University of California, Berkeley, in 1978.
Who is the developer of C shell in Linux
Bill Joy
Created by Bill Joy at the University of California at Berkeley in the late 1970s, C shell is one of the oldest Unix shells used today. It was developed as an alternative to Unix's original shell, the Bourne shell.
What is csh used for
The C shell is an interactive command interpreter and a command programming language that uses syntax similar to the C programming language. The shell carries out commands either interactively from a terminal keyboard or from a file. The csh command invokes the C shell.
What is the Korn shell
The Korn shell, or POSIX shell, provides a facility to control command sequences, or jobs. Inline editing in the Korn shell or POSIX shell. Normally, you type each command line from a terminal device and follow it by a newline character (RETURN or LINE FEED).
What is the oldest Unix shell
The Thompson shell was the first Unix shell, introduced in the first version of Unix in 1971, and was written by Ken Thompson.
Is C shell a language
The C shell is an interactive command interpreter and a command programming language. It uses syntax that is similar to the C programming language. The csh command starts the C shell. When you log in, the csh command first searches the system-wide setup file /etc/csh.
Who wrote the first shell
Ken Thompson
The first Unix shell was the Thompson shell, sh, written by Ken Thompson at Bell Labs and distributed with Versions 1 through 6 of Unix, from 1971 to 1975.
What is csh vs bash
BASH is a shell that is compatible with Bourne-shell. Its syntax is based on the Bourne shell, but it has been upgraded to include features such as command line editing, extended globing, and improved signal handling. CSH is more suited for interactive use, but BASH is better suited for shell scripts.
Who is the father of C and Unix
Dennis Ritchie
Dennis Ritchie, the inventor of C programming language and co-developer of Unix, died after a long, unspecified illness Wednesday. He was 70.
Is csh a shell type
There are a variety of shells and some have more bells and whistles than others. The 3 most common shells are sh (the original, also known as the Bourne shell), csh (Command SHell) and tcsh (an enhanced version of csh). Other shells include bash (Bourne-Again SHell), ksh (Korn SHell) and zsh.
Is Korn shell still used
For example, Bash is currently the default shell in many Linux systems, such as Ubuntu and Fedora, and until 2019, it was also the default shell in macOS (the default shell is now zsh). Despite this trend, the Korn shell is still being used and is the default shell on systems such as IBM AIX.
Why is it named Korn
When thinking of a band name, someone suggested "corn", but the band rejected that name, so Shaffer had the idea to spell the name with a "K" instead of a "C", and a backwards "R", so the band's name would appear as "KoЯn".
What OS was before Unix
Even before having Unix, we had the Multics OS. It was a joint project launched in 1964 as a cooperative project led by MIT, General Electric, and Bell Labs. Multics OS was a huge success because it could introduce the world to a real working and secure operating system.
Why is Unix 1970
January 1st, 1970 at 00:00:00 UTC is referred to as the Unix epoch. Early Unix engineers picked that date arbitrarily because they needed to set a uniform date for the start of time, and New Year's Day, 1970, seemed most convenient.
What is csh
The C shell (csh) is a command shell for Unix-like systems that was originally created as part of the Berkeley Software Distribution (BSD) in 1978.
Is C language like Python
C is a less robust programming language compared to Python. Python is a more robust programming language compared to C as it has strong memory management schemes. The C programming language is mostly used for the development of hardware applications. The number of built-in functions in C are very limited.
Who named shells
The electron shells were named by Spectroscopist Charles G Barkla. He named the innermost shell as K shell as he noticed that the X-rays emit two types of energies.
Is Korn a Linux shell
The Korn shell is still in use today on both Unix and Unix-like systems such as Linux and macOS, although many users now rely on Bash and other command shells instead of Korn.
Why use sh instead of bash
We should use sh if we want our language to be compatible with multiple systems. The sh script will most like run on bash also without modifications as bash is backward compatible with sh. sh is the most portable scripting language that works on most POSIX/Unix/Linux systems.
Is UNIX the mother of all OS
Unix is considered as the mother of most of the operating systems. The design of Unix systems is based on “Unix Philosophy” which includes the following characteristics: Usage of plain text for data storage. Hierarchical file system.
Which came first UNIX or C
The UNIX operating system's development started in 1969, and its code was rewritten in C in 1972. The C language was actually created to move the UNIX kernel code from assembly to a higher level language, which would do the same tasks with fewer lines of code.
Is csh better than bash
BASH is a shell that is compatible with Bourne-shell. Its syntax is based on the Bourne shell, but it has been upgraded to include features such as command line editing, extended globing, and improved signal handling. CSH is more suited for interactive use, but BASH is better suited for shell scripts.
Is shell written in C
Shell scripts are programs written in C shell. They are plain text files which can be edited and created by any text editor.
Is ksh better than bash
Korn shell provides much better performance than Bash shell when dealing with the execution of scripts and commands. Bash shell provides decent performance when it comes to executing commands and scripts. Korn shell interpreter is located at /bin/ksh. Bash shell interpreter is located at /bin/bash.
