Update syntax highlighting for commands docs from shell to nu (#1088)

commands/docs/alias.md

@@ -33,11 +33,11 @@ usage: |
 ## Examples
 
 Alias ll to ls -l
-```shell
+```nu
 > alias ll = ls -l
 
 ```
 
 ## Notes
 This command is a parser keyword. For details, check:
-  https://www.nushell.sh/book/thinking_in_nu.html
+  https://www.nushell.sh/book/thinking_in_nu.html

commands/docs/all.md

@@ -32,25 +32,25 @@ usage: |
 ## Examples
 
 Check if each row's status is the string 'UP'
-```shell
+```nu
 > [[status]; [UP] [UP]] | all {|el| $el.status == UP }
 true
 ```
 
 Check that each item is a string
-```shell
+```nu
 > [foo bar 2 baz] | all {|| ($in | describe) == 'string' }
 false
 ```
 
 Check that all values are equal to twice their index
-```shell
+```nu
 > [0 2 4 6] | enumerate | all {|i| $i.item == $i.index * 2 }
 true
 ```
 
 Check that all of the values are even, using a stored closure
-```shell
+```nu
 > let cond = {|el| ($el mod 2) == 0 }; [2 4 6 8] | all $cond
 true
 ```

commands/docs/ansi.md

@@ -35,37 +35,37 @@ usage: |
 ## Examples
 
 Change color to green (see how the next example text will be green!)
-```shell
+```nu
 > ansi green
 
 ```
 
 Reset the color
-```shell
+```nu
 > ansi reset
 
 ```
 
 Use different colors and styles in the same text
-```shell
+```nu
 > $'(ansi red_bold)Hello(ansi reset) (ansi green_dimmed)Nu(ansi reset) (ansi purple_italic)World(ansi reset)'
 Hello Nu World
 ```
 
 The same example as above with short names
-```shell
+```nu
 > $'(ansi rb)Hello(ansi reset) (ansi gd)Nu(ansi reset) (ansi pi)World(ansi reset)'
 Hello Nu World
 ```
 
 Use escape codes, without the '\x1b['
-```shell
+```nu
 > $"(ansi -e '3;93;41m')Hello(ansi reset)"  # italic bright yellow on red background
 Hello
 ```
 
 Use structured escape codes
-```shell
+```nu
 > let bold_blue_on_red = {  # `fg`, `bg`, `attr` are the acceptable keys, all other keys are considered invalid and will throw errors.
         fg: '#0000ff'
         bg: '#ff0000'
@@ -141,4 +141,4 @@ Operating system commands:
 | -------------------------------------------------- | ------- | ------------------------------------------------------------------ |
 | [`ansi gradient`](/commands/docs/ansi_gradient.md) | Builtin | Add a color gradient (using ANSI color codes) to the given string. |
 | [`ansi link`](/commands/docs/ansi_link.md)         | Builtin | Add a link (using OSC 8 escape sequence) to the given string.      |
-| [`ansi strip`](/commands/docs/ansi_strip.md)       | Builtin | Strip ANSI escape sequences from a string.                         |
+| [`ansi strip`](/commands/docs/ansi_strip.md)       | Builtin | Strip ANSI escape sequences from a string.                         |

commands/docs/ansi_gradient.md

@@ -38,28 +38,28 @@ usage: |
 ## Examples
 
 draw text in a gradient with foreground start and end colors
-```shell
+```nu
 > 'Hello, Nushell! This is a gradient.' | ansi gradient --fgstart '0x40c9ff' --fgend '0xe81cff'
 
 ```
 
 draw text in a gradient with foreground start and end colors and background start and end colors
-```shell
+```nu
 > 'Hello, Nushell! This is a gradient.' | ansi gradient --fgstart '0x40c9ff' --fgend '0xe81cff' --bgstart '0xe81cff' --bgend '0x40c9ff'
 
 ```
 
 draw text in a gradient by specifying foreground start color - end color is assumed to be black
-```shell
+```nu
 > 'Hello, Nushell! This is a gradient.' | ansi gradient --fgstart '0x40c9ff'
 
 ```
 
 draw text in a gradient by specifying foreground end color - start color is assumed to be black
-```shell
+```nu
 > 'Hello, Nushell! This is a gradient.' | ansi gradient --fgend '0xe81cff'
 
 ```
 
 
-**Tips:** Command `ansi gradient` was not included in the official binaries by default, you have to build it with `--features=extra` flag
+**Tips:** Command `ansi gradient` was not included in the official binaries by default, you have to build it with `--features=extra` flag

commands/docs/ansi_link.md

@@ -36,22 +36,22 @@ usage: |
 ## Examples
 
 Create a link to open some file
-```shell
+```nu
 > 'file:///file.txt' | ansi link --text 'Open Me!'
 Open Me!
 ```
 
 Create a link without text
-```shell
+```nu
 > 'https://www.nushell.sh/' | ansi link
 https://www.nushell.sh/
 ```
 
 Format a table column into links
-```shell
+```nu
 > [[url text]; [https://example.com Text]] | ansi link url
 
 ```
 
 
-**Tips:** Command `ansi link` was not included in the official binaries by default, you have to build it with `--features=extra` flag
+**Tips:** Command `ansi link` was not included in the official binaries by default, you have to build it with `--features=extra` flag

commands/docs/ansi_strip.md

@@ -34,7 +34,7 @@ usage: |
 ## Examples
 
 Strip ANSI escape sequences from a string
-```shell
+```nu
 > $'(ansi green)(ansi cursor_on)hello' | ansi strip
 hello
 ```

commands/docs/any.md

@@ -32,25 +32,25 @@ usage: |
 ## Examples
 
 Check if any row's status is the string 'DOWN'
-```shell
+```nu
 > [[status]; [UP] [DOWN] [UP]] | any {|el| $el.status == DOWN }
 true
 ```
 
 Check that any item is a string
-```shell
+```nu
 > [1 2 3 4] | any {|| ($in | describe) == 'string' }
 false
 ```
 
 Check if any value is equal to twice its own index
-```shell
+```nu
 > [9 8 7 6] | enumerate | any {|i| $i.item == $i.index * 2 }
 true
 ```
 
 Check if any of the values are odd, using a stored closure
-```shell
+```nu
 > let cond = {|e| $e mod 2 == 1 }; [2 4 1 6 8] | any $cond
 true
 ```

commands/docs/append.md

@@ -32,7 +32,7 @@ usage: |
 ## Examples
 
 Append one integer to a list
-```shell
+```nu
 > [0 1 2 3] | append 4
 ╭───┬───╮
 │ 0 │ 0 │
@@ -45,7 +45,7 @@ Append one integer to a list
 ```
 
 Append a list to an item
-```shell
+```nu
 > 0 | append [1 2 3]
 ╭───┬───╮
 │ 0 │ 0 │
@@ -57,7 +57,7 @@ Append a list to an item
 ```
 
 Append a list of string to a string
-```shell
+```nu
 > "a" | append ["b"]
 ╭───┬───╮
 │ 0 │ a │
@@ -67,7 +67,7 @@ Append a list of string to a string
 ```
 
 Append three integer items
-```shell
+```nu
 > [0 1] | append [2 3 4]
 ╭───┬───╮
 │ 0 │ 0 │
@@ -80,7 +80,7 @@ Append three integer items
 ```
 
 Append integers and strings
-```shell
+```nu
 > [0 1] | append [2 nu 4 shell]
 ╭───┬───────╮
 │ 0 │     0 │
@@ -94,7 +94,7 @@ Append integers and strings
 ```
 
 Append a range of integers to a list
-```shell
+```nu
 > [0 1] | append 2..4
 ╭───┬───╮
 │ 0 │ 0 │
@@ -110,4 +110,4 @@ Append a range of integers to a list
 Be aware that this command 'unwraps' lists passed to it. So, if you pass a variable to it,
 and you want the variable's contents to be appended without being unwrapped, it's wise to
 pre-emptively wrap the variable in a list, like so: `append [$val]`. This way, `append` will
-only unwrap the outer list, and leave the variable's contents untouched.
+only unwrap the outer list, and leave the variable's contents untouched.

commands/docs/ast.md

@@ -34,31 +34,31 @@ usage: |
 ## Examples
 
 Print the ast of a string
-```shell
+```nu
 > ast 'hello'
 
 ```
 
 Print the ast of a pipeline
-```shell
+```nu
 > ast 'ls | where name =~ README'
 
 ```
 
 Print the ast of a pipeline with an error
-```shell
+```nu
 > ast 'for x in 1..10 { echo $x '
 
 ```
 
 Print the ast of a pipeline with an error, as json, in a nushell table
-```shell
+```nu
 > ast 'for x in 1..10 { echo $x ' --json | get block | from json
 
 ```
 
 Print the ast of a pipeline with an error, as json, minified
-```shell
+```nu
 > ast 'for x in 1..10 { echo $x ' -j -m
 
 ```

commands/docs/bits_and.md

@@ -32,13 +32,13 @@ usage: |
 ## Examples
 
 Apply bits and to two numbers
-```shell
+```nu
 > 2 | bits and 2
 2
 ```
 
 Apply logical and to a list of numbers
-```shell
+```nu
 > [4 3 2] | bits and 2
 ╭───┬───╮
 │ 0 │ 0 │
@@ -49,4 +49,4 @@ Apply logical and to a list of numbers
 ```
 
 
-**Tips:** Command `bits and` was not included in the official binaries by default, you have to build it with `--features=extra` flag
+**Tips:** Command `bits and` was not included in the official binaries by default, you have to build it with `--features=extra` flag

commands/docs/bits_not.md

@@ -33,7 +33,7 @@ usage: |
 ## Examples
 
 Apply logical negation to a list of numbers
-```shell
+```nu
 > [4 3 2] | bits not
 ╭───┬─────────────────╮
 │ 0 │ 140737488355323 │
@@ -44,7 +44,7 @@ Apply logical negation to a list of numbers
 ```
 
 Apply logical negation to a list of numbers, treat input as 2 bytes number
-```shell
+```nu
 > [4 3 2] | bits not -n '2'
 ╭───┬───────╮
 │ 0 │ 65531 │
@@ -55,7 +55,7 @@ Apply logical negation to a list of numbers, treat input as 2 bytes number
 ```
 
 Apply logical negation to a list of numbers, treat input as signed number
-```shell
+```nu
 > [4 3 2] | bits not -s
 ╭───┬────╮
 │ 0 │ -5 │
@@ -66,4 +66,4 @@ Apply logical negation to a list of numbers, treat input as signed number
 ```
 
 
-**Tips:** Command `bits not` was not included in the official binaries by default, you have to build it with `--features=extra` flag
+**Tips:** Command `bits not` was not included in the official binaries by default, you have to build it with `--features=extra` flag

commands/docs/bits_or.md

@@ -32,13 +32,13 @@ usage: |
 ## Examples
 
 Apply bits or to two numbers
-```shell
+```nu
 > 2 | bits or 6
 6
 ```
 
 Apply logical or to a list of numbers
-```shell
+```nu
 > [8 3 2] | bits or 2
 ╭───┬────╮
 │ 0 │ 10 │
@@ -49,4 +49,4 @@ Apply logical or to a list of numbers
 ```
 
 
-**Tips:** Command `bits or` was not included in the official binaries by default, you have to build it with `--features=extra` flag
+**Tips:** Command `bits or` was not included in the official binaries by default, you have to build it with `--features=extra` flag

commands/docs/bits_rol.md

@@ -34,13 +34,13 @@ usage: |
 ## Examples
 
 Rotate left a number with 2 bits
-```shell
+```nu
 > 17 | bits rol 2
 68
 ```
 
 Rotate left a list of numbers with 2 bits
-```shell
+```nu
 > [5 3 2] | bits rol 2
 ╭───┬────╮
 │ 0 │ 20 │
@@ -51,4 +51,4 @@ Rotate left a list of numbers with 2 bits
 ```
 
 
-**Tips:** Command `bits rol` was not included in the official binaries by default, you have to build it with `--features=extra` flag
+**Tips:** Command `bits rol` was not included in the official binaries by default, you have to build it with `--features=extra` flag