Macro to execute the given command using the Almquist Shell and wraping the resulting tuple into a Result. Macro to execute the given command using the Bourne Again Shell and wraping the resulting tuple into a Result. Macro to execute the given command using the C Shell and wraping the resulting tuple into a Result. Macro to execute the given command using the Debian Almquist Shell and wraping the resulting tuple into a Result.
Macro to execute the given command using the Fish Shell and wraping the resulting tuple into a Result. Macro to execute the given command using the Korn Shell and wraping the resulting tuple into a Result. Macro to execute the given command using the Posix Shell and wraping the resulting tuple into a Result. Macro to execute the given command using the Z Shell and wraping the resulting tuple into a Result. It implements the Error trait and its implementation of the Display trait is identical to the implementation of the Display trait of its stderr field.
Will either be Ok stdout or an error containing code, stdout and stderr resulting from executing the command. Owners Proksima. Versions 0. About docs. To build Nu, you will need to use the latest stable 1. To install Nu via cargo make sure you have installed rustup and the latest stable compiler via rustup install stable :.
To install Nu via the Windows Package Manager :. To install Nu via the Chocolatey package manager:. You can also build Nu yourself with all the bells and whistles be sure to have installed the dependencies for your platform , once you have checked out this repo with git:. Nu draws inspiration from projects like PowerShell, functional programming languages, and modern CLI tools. Rather than thinking of files and services as raw streams of text, Nu looks at each input as something with structure.
For example, when you list the contents of a directory, what you get back is a table of rows, where each row represents an item in that directory. These values can be piped through a series of steps, in a series of commands called a 'pipeline'. In Unix, it's common to pipe between commands to split up a sophisticated command over multiple steps. Nu takes this a step further and builds heavily on the idea of pipelines. Just as the Unix philosophy, Nu allows commands to output to stdout and read from stdin.
Additionally, commands can output structured data you can think of this as a third kind of stream. Commands that work in the pipeline fit into one of three categories:. Commands are separated by the pipe symbol to denote a pipeline flowing left to right.
Because most of the time you'll want to see the output of a pipeline, autoview is assumed. We could have also written the above:. Being able to use the same commands and compose them differently is an important philosophy in Nu. For example, we could use the built-in ps command to get a list of the running processes, using the same where as above. Nu can load file and URL contents as raw text or structured data if it recognizes the format.
For example, you can load a. Nu has early support for configuring the shell. You can refer to the book for a list of all supported variables. Nu will work inside of a single directory and allow you to navigate around your filesystem by default.
Nu also offers a way of adding additional working directories that you can jump between, allowing you to work in multiple directories simultaneously. To do so, use the enter command, which will allow you to create a new "shell" and enter it at the specified path. You can toggle between this new shell and the original shell with the p for previous and n for next , allowing you to navigate around a ring buffer of shells. Once you're done with a shell, you can exit it and remove it from the ring buffer.
Finally, to get a list of all the current shells, you can use the shells command. Nu supports plugins that offer additional functionality to the shell and follow the same structured data model that built-in commands use. This allows you to extend nu for your needs. These binaries interact with nu via a simple JSON-RPC protocol where the command identifies itself and passes along its configuration, making it available for use.
Nu adheres closely to a set of goals that make up its design philosophy. As features are added, they are checked against these goals. First and foremost, Nu is cross-platform. Commands and techniques should carry between platforms and offer consistent first-class support for Windows, macOS, and Linux.
Nu ensures direct compatibility with existing platform-specific executables that make up people's workflows. Nu's workflow and tools should have the usability in day-to-day experience of using a shell in and beyond. Nu views data as both structured and unstructured. It is a structured shell like PowerShell.
Finally, Nu views data functionally. Rather than using mutation, pipelines act as a means to load, change, and save data without mutable state. You can find a list of Nu commands, complete with documentation, in quick command references. Nu is in heavy development and will naturally change as it matures and people use it. The chart below isn't meant to be exhaustive, but rather helps give an idea for some of the areas of development and their relative completion:.
See Contributing for details. The project is made available under the MIT license. Skip to content. Star A new type of shell www. MIT License. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Branches Tags. Could not load branches. Could not load tags. Latest commit.
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Nu comes with a set of built-in commands (listed below). If a command is unknown, the command will shell-out and execute it (using cmd on Windows or bash on. API documentation for the Rust `shells` crate. Wrapper around std::process::Command which make the use of Rust for shell scripting more appealing. This is a tutorial on building your own shell using Rust, in the spirit Most users interact with the shell through a terminal emulator.