Nushell 0.17.0: Expanded Command Set and Website Refresh

The new `benchmark` command will time a block and output the length of time it took to run: ``` > benchmark { echo "hello" } 363us 528ns ``` ### `str reverse` (JosephTLyons) The `str reverse` command will reverse the characters of a string: ``` > echo "hello world" | str reverse dlrow olleh ``` ### `str length` (sophiajt) On a related note, you can now also get the length of a string. ``` > echo "hello world" | str length 11 ``` ### `str from` (bailey-layzer) In previous versions of Nu, it was difficult to format numbers for precision and digit grouping. Starting with 0.17, there's now a new `str from` subcommand to help with this. ``` > echo 1.456123 | str from --decimals 2 1.46 > echo 1234567 | str from --group-digits 1,234,567 ``` ### `math stddev` and `math variance` (amousa11) You can now calculate standard deviation and variance in your numeric datasets: ``` > echo [ 1 2 3 4 5 ] | math stddev 1.414213562373095048801688724209698078569671875376948073176679737990732478462107038850387534327641573 > echo [ 1 2 3 4 5 ] | math variance 2 ``` ### `if` (sophiajt) Ever want to run one block if a condition was true and another if the condition was false? Now you can! ``` > echo 0..5 | if $it > 3 { echo big } { echo small } ───┬─────── 0 │ small 1 │ small 2 │ small 3 │ small 4 │ big 5 │ big ───┴─────── ``` The keen observer might notice we're stealthy sneaking in more commands you might use in future scripting. ### `split chars` (sophiajt) To more easily work with the characters in a string, you can now split the characters into separate items: ``` > echo "hello" | split chars ───┬─── 0 │ h 1 │ e 2 │ l 3 │ l 4 │ o ───┴─── ``` ### `move column` (andrasio) Finally, you can now move columns in your table: ``` > ls ───┬──────────────────────────────────┬──────┬─────────┬──────────── # │ name │ type │ size │ modified ───┼──────────────────────────────────┼──────┼─────────┼──────────── 0 │ 0.bootstrap.js │ File │ 30.9 KB │ 1 hour ago 1 │ 46a44c28f12d33243854.module.wasm │ File │ 5.4 MB │ 1 hour ago 2 │ bootstrap.js │ File │ 16.3 KB │ 1 hour ago 3 │ index.html │ File │ 1.4 KB │ 1 hour ago ───┴──────────────────────────────────┴──────┴─────────┴──────────── > ls | move column size --before type ───┬──────────────────────────────────┬─────────┬──────┬──────────── # │ name │ size │ type │ modified ───┼──────────────────────────────────┼─────────┼──────┼──────────── 0 │ 0.bootstrap.js │ 30.9 KB │ File │ 1 hour ago 1 │ 46a44c28f12d33243854.module.wasm │ 5.4 MB │ File │ 1 hour ago 2 │ bootstrap.js │ 16.3 KB │ File │ 1 hour ago 3 │ index.html │ 1.4 KB │ File │ 1 hour ago ───┴──────────────────────────────────┴─────────┴──────┴──────────── ``` ## Early draft of a new website (pontaoski) We're working on a refresh of our website. If you're interested in giving it a look, we've got an [early draft started](https://github.com/nushell/website_exploration). If you'd like to help us with the design, reach out over github or discord.

Nushell 0.17.0 introduces several new commands including `benchmark` for timing code blocks, `str reverse` for reversing strings, `str length` for string length calculation, `str from` for number formatting, and `math stddev` and `math variance` for statistical analysis. Additionally, an `if` command for conditional execution, `split chars` for splitting strings into individual characters, and `move column` for rearranging table columns are added. The project also announces an early draft of a new website design and invites community feedback and contributions.