Nushell 0.27: Further Improvements, Internal Changes, and Documentation Updates

- [The start of a new section on writing your own Nushell scripts](https://www.nushell.sh/book/scripts.html) # Improvements ## New commands (fdncred) - A new `term size` commands [lets you get the current size of the terminal](https://github.com/nushell/nushell/pull/3038) - New [`pow` operator](https://github.com/nushell/nushell/pull/2976) - New [modulus(`%`) operator](https://github.com/nushell/nushell/pull/2975) ## Functionality (sophiajt, WatsonThink, ilius, andrasio, Qwanve, fdncred, ammkrn) - Tables now [truncate instead of crashing when too large](https://github.com/nushell/nushell/pull/3061) - `source` command now can [use tilde in the path](https://github.com/nushell/nushell/pull/3059) - `let-env` can now shadow [environment variables](https://github.com/nushell/nushell/pull/3057) in addition to adding new ones - Prompts can now call [external commands on initial startup](https://github.com/nushell/nushell/pull/3056) - You can now configure the [file size standard to use](https://github.com/nushell/nushell/pull/3045) - Strings can now be passed in where [column-paths were expected](https://github.com/nushell/nushell/pull/3048) and [here](https://github.com/nushell/nushell/pull/3016) - More [file size types have been added](https://github.com/nushell/nushell/pull/3035) - `sort-by` can now [reverse sort](https://github.com/nushell/nushell/pull/3025) - `which` can now take [multiple applications](https://github.com/nushell/nushell/pull/3024) - `ps -l` now has [a cleaner output when the parent is missing](https://github.com/nushell/nushell/pull/3015) - `select` can no longer [select the same column twice](https://github.com/nushell/nushell/pull/3012) - `to-md --per-element` now gives you [more fine-grained control over the markdown output](https://github.com/nushell/nushell/pull/2997) - A new [`$nothing` built-in variable to help check for the existence of a value](https://github.com/nushell/nushell/pull/2995) - `str from` can convert [more things to strings](https://github.com/nushell/nushell/pull/2977) - Booleans are now shown as [true/false instead of Yes/No](https://github.com/nushell/nushell/pull/3043) ## Internal (stormasm, ilius, fdncred, LhKipp, RReverser, sophiajt) - Some [comment parsing improvements](https://github.com/nushell/nushell/pull/3053) - The `block` function is now [`parse_block`](https://github.com/nushell/nushell/pull/3047) - More [Value helpers were added](https://github.com/nushell/nushell/pull/3000) - [Parser cleanup for handling `def`](https://github.com/nushell/nushell/pull/2986) - The [WASI build should now be working again](https://github.com/nushell/nushell/pull/2983) - File size is [now a big int](https://github.com/nushell/nushell/pull/2984) ## Documentation (watzon, ahkrr, LhKipp, Andy-Python-Programmer, diogomafra) - Sample config has [gotten an update](https://github.com/nushell/nushell/pull/3060) and [here](https://github.com/nushell/nushell/pull/3031) - Some [README links got updated](https://github.com/nushell/nushell/pull/3052) - More [README updates](https://github.com/nushell/nushell/pull/3013) and [here](https://github.com/nushell/nushell/pull/2996) - README now shows [contributor icons](https://github.com/nushell/nushell/pull/2993) # Breaking changes - Booleans are now shown as [true/false instead of Yes/No](https://github.com/nushell/nushell/pull/3043) # Looking ahead We're hard at work at putting together the proposed features for Nushell 1.0, which will help guide the work to get there. While there's still much work to do to achieve a 1.0 release, this proposal will let the community help refine and correct the direction. We're looking forward to kicking this off in the coming weeks.

Nushell 0.27 brings a variety of improvements, including the ability to pass strings where column paths were expected, more file size types, reverse sorting in `sort-by`, multiple applications in `which`, cleaner output for `ps -l`, preventing duplicate column selection in `select`, fine-grained markdown output control with `to-md`, a `$nothing` variable for checking value existence, and broader string conversion with `str from`. Booleans now display as true/false. Internal changes include comment parsing improvements, renaming the `block` function, adding value helpers, parser cleanup, fixing the WASI build, and using big int for file sizes. Documentation received updates to the sample config and README. Breaking changes include boolean representation. The Nushell team is also planning features for Nushell 1.0.