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Improve example formatting in README.md (nushell#14695)
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# Description

Conforming the examples in the README documentation to match the new
example formatting suggested in
nushell/nushell.github.io#1684.

# User-Facing Changes

Examples no longer have a prompt indicator, and example results are now
inside of commend blocks. This should improve the ability for users to
test out the examples when exploring nushell for the first time.

# Tests + Formatting

No tests have been added as this is purely a documentation change.
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0x4D5352 authored Dec 29, 2024
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Expand Up @@ -95,44 +95,44 @@ 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.

```shell
> ls | where type == "dir" | table
╭────┬──────────┬──────┬─────────┬───────────────╮
# │ name │ type │ size │ modified │
├────┼──────────┼──────┼─────────┼───────────────┤
│ 0 │ .cargo │ dir │ 0 B │ 9 minutes ago │
│ 1 │ assets │ dir │ 0 B │ 2 weeks ago │
│ 2 │ crates │ dir │ 4.0 KiB │ 2 weeks ago │
│ 3 │ docker │ dir │ 0 B │ 2 weeks ago │
│ 4 │ docs │ dir │ 0 B │ 2 weeks ago │
│ 5 │ images │ dir │ 0 B │ 2 weeks ago │
│ 6 │ pkg_mgrs │ dir │ 0 B │ 2 weeks ago │
│ 7 │ samples │ dir │ 0 B │ 2 weeks ago │
│ 8 │ src │ dir │ 4.0 KiB │ 2 weeks ago │
│ 9 │ target │ dir │ 0 B │ a day ago │
│ 10 │ tests │ dir │ 4.0 KiB │ 2 weeks ago │
│ 11 │ wix │ dir │ 0 B │ 2 weeks ago │
╰────┴──────────┴──────┴─────────┴───────────────╯
ls | where type == "dir" | table
# => ╭────┬──────────┬──────┬─────────┬───────────────╮
# => │ # │ name │ type │ size │ modified │
# => ├────┼──────────┼──────┼─────────┼───────────────┤
# => │ 0 │ .cargo │ dir │ 0 B │ 9 minutes ago │
# => │ 1 │ assets │ dir │ 0 B │ 2 weeks ago │
# => │ 2 │ crates │ dir │ 4.0 KiB │ 2 weeks ago │
# => │ 3 │ docker │ dir │ 0 B │ 2 weeks ago │
# => │ 4 │ docs │ dir │ 0 B │ 2 weeks ago │
# => │ 5 │ images │ dir │ 0 B │ 2 weeks ago │
# => │ 6 │ pkg_mgrs │ dir │ 0 B │ 2 weeks ago │
# => │ 7 │ samples │ dir │ 0 B │ 2 weeks ago │
# => │ 8 │ src │ dir │ 4.0 KiB │ 2 weeks ago │
# => │ 9 │ target │ dir │ 0 B │ a day ago │
# => │ 10 │ tests │ dir │ 4.0 KiB │ 2 weeks ago │
# => │ 11 │ wix │ dir │ 0 B │ 2 weeks ago │
# => ╰────┴──────────┴──────┴─────────┴───────────────╯
```

Because most of the time you'll want to see the output of a pipeline, `table` is assumed.
We could have also written the above:

```shell
> ls | where type == "dir"
ls | where type == "dir"
```

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.

```shell
> ps | where cpu > 0
╭───┬───────┬───────────┬───────┬───────────┬───────────╮
# │ pid │ name │ cpu │ mem │ virtual │
├───┼───────┼───────────┼───────┼───────────┼───────────┤
│ 0 │ 2240 │ Slack.exe │ 16.40 │ 178.3 MiB │ 232.6 MiB │
│ 1 │ 16948 │ Slack.exe │ 16.32 │ 205.0 MiB │ 197.9 MiB │
│ 2 │ 17700 │ nu.exe │ 3.77 │ 26.1 MiB │ 8.8 MiB │
╰───┴───────┴───────────┴───────┴───────────┴───────────╯
ps | where cpu > 0
# => ╭───┬───────┬───────────┬───────┬───────────┬───────────╮
# => │ # │ pid │ name │ cpu │ mem │ virtual │
# => ├───┼───────┼───────────┼───────┼───────────┼───────────┤
# => │ 0 │ 2240 │ Slack.exe │ 16.40 │ 178.3 MiB │ 232.6 MiB │
# => │ 1 │ 16948 │ Slack.exe │ 16.32 │ 205.0 MiB │ 197.9 MiB │
# => │ 2 │ 17700 │ nu.exe │ 3.77 │ 26.1 MiB │ 8.8 MiB │
# => ╰───┴───────┴───────────┴───────┴───────────┴───────────╯
```

### Opening files
Expand All @@ -141,46 +141,46 @@ Nu can load file and URL contents as raw text or structured data (if it recogniz
For example, you can load a .toml file as structured data and explore it:

```shell
> open Cargo.toml
╭──────────────────┬────────────────────╮
│ bin │ [table 1 row] │
│ dependencies │ {record 25 fields} │
│ dev-dependencies │ {record 8 fields} │
│ features │ {record 10 fields} │
│ package │ {record 13 fields} │
│ patch │ {record 1 field} │
│ profile │ {record 3 fields} │
│ target │ {record 3 fields} │
│ workspace │ {record 1 field} │
╰──────────────────┴────────────────────╯
open Cargo.toml
# => ╭──────────────────┬────────────────────╮
# => │ bin │ [table 1 row] │
# => │ dependencies │ {record 25 fields} │
# => │ dev-dependencies │ {record 8 fields} │
# => │ features │ {record 10 fields} │
# => │ package │ {record 13 fields} │
# => │ patch │ {record 1 field} │
# => │ profile │ {record 3 fields} │
# => │ target │ {record 3 fields} │
# => │ workspace │ {record 1 field} │
# => ╰──────────────────┴────────────────────╯
```

We can pipe this into a command that gets the contents of one of the columns:

```shell
> open Cargo.toml | get package
╭───────────────┬────────────────────────────────────╮
│ authors │ [list 1 item] │
│ default-run │ nu │
│ description │ A new type of shell │
│ documentation │ https://www.nushell.sh/book/ │
│ edition │ 2018 │
│ exclude │ [list 1 item] │
│ homepage │ https://www.nushell.sh │
│ license │ MIT │
│ metadata │ {record 1 field} │
│ name │ nu │
│ repository │ https://github.com/nushell/nushell │
│ rust-version │ 1.60 │
│ version │ 0.72.0 │
╰───────────────┴────────────────────────────────────╯
open Cargo.toml | get package
# => ╭───────────────┬────────────────────────────────────╮
# => │ authors │ [list 1 item] │
# => │ default-run │ nu │
# => │ description │ A new type of shell │
# => │ documentation │ https://www.nushell.sh/book/ │
# => │ edition │ 2018 │
# => │ exclude │ [list 1 item] │
# => │ homepage │ https://www.nushell.sh │
# => │ license │ MIT │
# => │ metadata │ {record 1 field} │
# => │ name │ nu │
# => │ repository │ https://github.com/nushell/nushell │
# => │ rust-version │ 1.60 │
# => │ version │ 0.72.0 │
# => ╰───────────────┴────────────────────────────────────╯
```

And if needed we can drill down further:

```shell
> open Cargo.toml | get package.version
0.72.0
open Cargo.toml | get package.version
# => 0.72.0
```

### Plugins
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