Nushell 0.18: Command Improvements, Breaking Changes, and Bugfixes

- **New:** [`reduce` command](https://github.com/nushell/nushell/pull/2292) to reduce a list of values into a value (bailey-layzer) - **New:** [`path basename`, `path extension`, `path expand`](https://github.com/nushell/nushell/pull/2255) for working with path values (mattyhall) - **New:** [`path type` and `path exists`](https://github.com/nushell/nushell/pull/2264) for more path-related functionality (mattyhall) - **New:** [`str ltrim` and `str rtrim`](https://github.com/nushell/nushell/pull/2262) to trim off left-hand and right-hand characters (k-brk) - **New:** [`str starts-with` and `str ends-with`](https://github.com/nushell/nushell/pull/2269) to check if a string begins or ends with a given substring (k-brk) - **New:** the [`url` subcommands](https://github.com/nushell/nushell/pull/2274) for dealing with URLs (mattyhall) - The history file path is [now configurable](https://github.com/nushell/nushell/pull/2320) (Amanita-muscaria) - The startup banner can now be [turned off](https://github.com/nushell/nushell/pull/2314) (avranju) - `version` now contains the [features](https://github.com/nushell/nushell/pull/2333) that Nu was built with (andrasio) - `math stddev` and `math variance` can now [sample the input](https://github.com/nushell/nushell/pull/2310) (andrasio) - `do -i` will also [ignore stderr output](https://github.com/nushell/nushell/pull/2309) from external commands (sophiajt) - `to html` now has [many themes to choose from](https://github.com/nushell/nushell/pull/2308) (fdncred) - `to html` also now has [list output](https://github.com/nushell/nushell/pull/2273) (coolshaurya) - More of the line editor settings are [now configurable](https://github.com/nushell/nushell/pull/2238) (fdncred) - `str to-datetime` can now [parse many more date formats](https://github.com/nushell/nushell/pull/2303) (nmandery) - `str join` now optionally takes [a separator value](https://github.com/nushell/nushell/pull/2289) (coolshaurya) - `histogram` can now [work with simple values](https://github.com/nushell/nushell/pull/2300) (andrasio) - `ls -al` (and `ps -l`) are now the preferred way of getting a full listing (JosephTLyons) - `insert` now [takes a block](https://github.com/nushell/nushell/pull/2265) to do the work of inserting values (coolshaurya) ## Breaking changes The flags for --full in `ls` and `ps` has been changed to --long (-l) to better align with habits from other shells. Line editor config settings have [moved to their own section](https://github.com/nushell/nushell/pull/2238). ## Demo site (jzaefferer, sophiajt) There have been a number of improvements to the new wasm-based demo site, including new colors, command improvements, pivoting of long tables, and more. ## Bugfixes (fdncred, kornelski, JosephTLyons, andrasio, thegedge, sophiajt, jzaefferer, warrenseine, coolshaurya) Fixed issues with different types of symlinks on Windows, Nu will now used the support app_dirs crate, lots of internal match logic cleanup, internal representation of data summaries got a cleanup, getting ready to add a winget package, the first wave of parser cleanups ahead of future completion work, cleaned up unnecessary extra build steps, new command examples, improvements to the new `path` command errors, fixed histogram example, and consistency improvements. # Looking forward We're nearly to the first birthday for Nu! In the near future, we'll continue to improve completions, work on a possible new [data frames](https://github.com/nushell/rfcs/pull/3) implementation, continuing to push the wasm implementation further, and more.

This section details the command improvements in Nushell 0.18, including new commands like `reduce`, `path basename`, `path extension`, `path expand`, `path type`, `path exists`, `str ltrim`, `str rtrim`, `str starts-with`, `str ends-with`, and `url`. It also covers enhancements to existing commands, such as configurable history file path and startup banner, inclusion of features in `version`, sampling in `math stddev` and `math variance`, and improvements to `to html`, `str to-datetime`, `str join`, `histogram`, `ls`, `ps`, and `insert`. Breaking changes include the change of flags for `--full` in `ls` and `ps` to `--long` and the relocation of line editor config settings. The section also mentions improvements to the demo site and various bug fixes. Finally, it touches on future plans for Nushell, including improving completions, working on data frames, and pushing the wasm implementation.