this post was submitted on 27 Dec 2024
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Nushell

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What is Nushell?

Nushell is a powerful shell and scripting language with strong typing, querying, and piping functionalities.

From the official documentation; Introduction:

The goal of this project is to take the Unix philosophy of shells, where pipes connect simple commands together, and bring it to the modern style of development. Thus, rather than being either a shell, or a programming language, Nushell connects both by bringing a rich programming language and a full-featured shell together into one package.

Nu takes cues from a lot of familiar territory: traditional shells like bash, object based shells like PowerShell, gradually typed languages like TypeScript, functional programming, systems programming, and more. But rather than trying to be a jack of all trades, Nu focuses its energy on doing a few things well:

Examples

Shell Examples…

nu> ls | where size > 1kb
╭───┬───────────────────┬──────┬─────────┬────────────╮
│ # │       name        │ type │  size   │  modified  │
├───┼───────────────────┼──────┼─────────┼────────────┤
│ 0 │ Gemfile           │ file │ 1.1 KiB │ 3 days ago │
│ 1 │ Gemfile.lock      │ file │ 6.9 KiB │ 3 days ago │
│ 2 │ LICENSE           │ file │ 1.1 KiB │ 3 days ago │
│ 3 │ SUMMARY.md        │ file │ 3.7 KiB │ 3 days ago │
╰───┴───────────────────┴──────┴─────────┴────────────╯
nu> help commands | where name == each | first | get params.name
╭───┬──────────────────╮
│ 0 │ closure          │
│ 1 │ --help(-h)       │
│ 2 │ --keep-empty(-k) │
╰───┴──────────────────╯
nu> http get https://programming.dev/api/v3/site | get all_languages | length
184

nu> http get https://programming.dev/api/v3/site | get taglines.content
╭───┬───────────────────────────────────────────────────────╮
│ 0 │ Some communities may be broken while we work on fixes │
╰───┴───────────────────────────────────────────────────────╯
## Web-Links * [Website](https://www.nushell.sh/) * [GitHub](https://github.com/nushell/nushell) (Rust, MIT)

founded 2 months ago
MODERATORS
 
  • Simplified Startup Configuration
  • path self
  • chunk-by
  • term query
  • merge deep
  • WASM support (again)
  • sys net inclueds new columns mac and ip
  • raw string pattern matching
  • dates can now be added to durations
  • additional explore keybinds
  • version in startup banner
  • input --default
  • PowerShell script invocation on Windows
  • new introspection tools

Breaking Changes:

  • ++ operator, stricter command signature parsing (resolves silent parse errors)
  • group-by now supports "groupers" (multiple criteria)
  • timeit
  • sys cpu
  • from csv and from tsv
  • std/iter scan
  • completion sorting in custom completers, import module naming with normalization
  • display_output hook
  • du flag changes
  • Code specific environment variables updated during source
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