12/25/2023 0 Comments Bash vs zsh![]() ![]() Which Should You Choose? (and Why Zsh is Popular) People ended up using the Bourne shell for scripts because it handled non-interactive commands better, but stuck with the C shell for normal use. In addition, csh had quite a few bugs that had to be hammered out by users and creators alike over a large period of time. This also meant that users of the Bourne shell had to learn C so they could enter commands in it. It was modeled off the C programming language, which the Unix operating system itself was written in. The C shell, or "csh", was developed in the late 1970s by Bill Joy at University of California, Berkley. It added a lot of interactive elements with which users could control their systems, like aliases (shortcuts for long commands), job management abilities, command history, and more. ![]() It did not offer much customization for users, and didn't support such modern niceties as aliases, command completion, and shell functions (though this last one was eventually added). Released in 1979, it became the default command-interpreter in Unix because of its support for command substitution, piping, variables, condition testing, and looping, along with other features. The most prominent progenitor of modern shells is the Bourne shell-also known as "sh"-which was named after its creator Stephen Bourne who worked at AT&T's Bell Labs. Related: What Is Unix, and Why Does It Matter? Shells Leading Up to Bash: sh, csh, tsh, and ksh These scripts are commands and other advanced shell scripting functions run through the shell environment. Linux distributions include many functions written as shell scripts. The shell is also used in the background by various system services. The first shell environment was the Thompson Shell, developed at Bell Labs and released in 1971. Shell environments have been building on the concept ever since, adding a variety of new features, functionality, and speed improvements.įor example, Bash offers command and file name completion, advanced scripting features, a command history, configurable colors, command aliases, and a variety of other features that weren't available back in 1971 when the first shell was released. You can swap out the default shell for another one, if you like. Shells offer a standard way of extending the command line environment. ![]() When you sign in at the command line or launch a terminal window on Linux, the system launches the shell program. But what's the difference, and why are there so many? What Do Shells Do? Zsh is a particularly popular alternative, and there are other shells, like ash, dash, fish, and tcsh. Most Linux distributions include the bash shell by default, but you could also switch to another shell environment. Which Should You Choose? (and Why Zsh is Popular).Shells Leading Up to Bash: sh, csh, tsh, and ksh. ![]()
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