doc: harmonize fenced code snippet flags

We had a few code snippets that were using a non-descriptive tag (e.g.
`console` or `text`), whereas the actual language it's using describes
it better, and improves the syntax highlighting. This commit also
removes non-necessary leading chars (e.g. `$`, `>`, or `%`) to make it
easier for readers to copy and paste to try the command themselves.

PR-URL: nodejs#48082
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Paolo Insogna <paolo@cowtech.it>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

README.md

@@ -98,15 +98,15 @@ files.
 
 To download `SHASUMS256.txt` using `curl`:
 
-```console
-$ curl -O https://nodejs.org/dist/vx.y.z/SHASUMS256.txt
+```bash
+curl -O https://nodejs.org/dist/vx.y.z/SHASUMS256.txt
 ```
 
 To check that a downloaded file matches the checksum, run
 it through `sha256sum` with a command such as:
 
-```console
-$ grep node-vx.y.z.tar.gz SHASUMS256.txt | sha256sum -c -
+```bash
+grep node-vx.y.z.tar.gz SHASUMS256.txt | sha256sum -c -
 ```
 
 For Current and LTS, the GPG detached signature of `SHASUMS256.txt` is in
@@ -115,16 +115,16 @@ For Current and LTS, the GPG detached signature of `SHASUMS256.txt` is in
 [the GPG keys of individuals authorized to create releases](#release-keys). To
 import the keys:
 
-```console
-$ gpg --keyserver hkps://keys.openpgp.org --recv-keys 4ED778F539E3634C779C87C6D7062848A1AB005C
+```bash
+gpg --keyserver hkps://keys.openpgp.org --recv-keys 4ED778F539E3634C779C87C6D7062848A1AB005C
 ```
 
 See [Release keys](#release-keys) for a script to import active release keys.
 
 Next, download the `SHASUMS256.txt.sig` for the release:
 
-```console
-$ curl -O https://nodejs.org/dist/vx.y.z/SHASUMS256.txt.sig
+```bash
+curl -O https://nodejs.org/dist/vx.y.z/SHASUMS256.txt.sig
 ```
 
 Then use `gpg --verify SHASUMS256.txt.sig SHASUMS256.txt` to verify

doc/api/addons.md

@@ -532,8 +532,8 @@ filename to the `sources` array:
 Once the `binding.gyp` file is ready, the example addons can be configured and
 built using `node-gyp`:
 
-```console
-$ node-gyp configure build
+```bash
+node-gyp configure build
 ```
 
 ### Function arguments

doc/api/cli.md

@@ -184,8 +184,8 @@ Error: Access to this API has been restricted
 
 The process needs to have access to the `index.js` module:
 
-```console
-$ node --experimental-permission --allow-fs-read=/path/to/index.js index.js
+```bash
+node --experimental-permission --allow-fs-read=/path/to/index.js index.js
 ```
 
 ### `--allow-fs-write`
@@ -314,9 +314,9 @@ added: v10.12.0
 
 Print source-able bash completion script for Node.js.
 
-```console
-$ node --completion-bash > node_bash_completion
-$ source node_bash_completion
+```bash
+node --completion-bash > node_bash_completion
+source node_bash_completion
 ```
 
 ### `-C condition`, `--conditions=condition`
@@ -339,8 +339,8 @@ The default Node.js conditions of `"node"`, `"default"`, `"import"`, and
 
 For example, to run a module with "development" resolutions:
 
-```console
-$ node -C development app.js
+```bash
+node -C development app.js
 ```
 
 ### `--cpu-prof`
@@ -1854,8 +1854,8 @@ Use `--watch-path` to specify what paths to watch.
 This flag cannot be combined with
 `--check`, `--eval`, `--interactive`, or the REPL.
 
-```console
-$ node --watch index.js
+```bash
+node --watch index.js
 ```
 
 ### `--watch-path`
@@ -1877,8 +1877,8 @@ combination with `--watch`.
 This flag cannot be combined with
 `--check`, `--eval`, `--interactive`, `--test`, or the REPL.
 
-```console
-$ node --watch-path=./src --watch-path=./tests index.js
+```bash
+node --watch-path=./src --watch-path=./tests index.js
 ```
 
 This option is only supported on macOS and Windows.
@@ -1889,8 +1889,8 @@ when the option is used on a platform that does not support it.
 
 Disable the clearing of the console when watch mode restarts the process.
 
-```console
-$ node --watch --watch-preserve-output test.js
+```bash
+node --watch --watch-preserve-output test.js
 ```
 
 ### `--zero-fill-buffers`
@@ -2525,8 +2525,8 @@ garbage collection in an effort to free unused memory.
 On a machine with 2 GiB of memory, consider setting this to
 1536 (1.5 GiB) to leave some memory for other uses and avoid swapping.
 
-```console
-$ node --max-old-space-size=1536 index.js
+```bash
+node --max-old-space-size=1536 index.js
 ```
 
 ### `--max-semi-space-size=SIZE` (in megabytes)

doc/api/esm.md

@@ -711,7 +711,7 @@ all `import` calls. They won't apply to `require` calls; those still follow
 
 Loaders follow the pattern of `--require`:
 
-```console
+```bash
 node \
   --experimental-loader unpkg \
   --experimental-loader http-to-https \

doc/api/net.md

@@ -1616,8 +1616,8 @@ server.listen(8124, () => {
 
 Test this by using `telnet`:
 
-```console
-$ telnet localhost 8124
+```bash
+telnet localhost 8124
 ```
 
 To listen on the socket `/tmp/echo.sock`:
@@ -1630,8 +1630,8 @@ server.listen('/tmp/echo.sock', () => {
 
 Use `nc` to connect to a Unix domain socket server:
 
-```console
-$ nc -U /tmp/echo.sock
+```bash
+nc -U /tmp/echo.sock
 ```
 
 ## `net.getDefaultAutoSelectFamily()`

doc/api/process.md

@@ -922,8 +922,8 @@ argv.forEach((val, index) => {
 
 Launching the Node.js process as:
 
-```console
-$ node process-args.js one two=three four
+```bash
+node process-args.js one two=three four
 ```
 
 Would generate the output:
@@ -1577,8 +1577,8 @@ reflected outside the Node.js process, or (unless explicitly requested)
 to other [`Worker`][] threads.
 In other words, the following example would not work:
 
-```console
-$ node -e 'process.env.foo = "bar"' && echo $foo
+```bash
+node -e 'process.env.foo = "bar"' && echo $foo
 ```
 
 While the following will:
@@ -1683,8 +1683,8 @@ include the Node.js executable, the name of the script, or any options following
 the script name. These options are useful in order to spawn child processes with
 the same execution environment as the parent.
 
-```console
-$ node --harmony script.js --version
+```bash
+node --harmony script.js --version
 ```
 
 Results in `process.execArgv`:

doc/api/repl.md

@@ -712,7 +712,7 @@ terminal settings, which will allow use with `rlwrap`.
 
 For example, the following can be added to a `.bashrc` file:
 
-```text
+```bash
 alias node="env NODE_NO_READLINE=1 rlwrap node"
 ```
 

doc/api/single-executable-applications.md

@@ -26,42 +26,42 @@ Here are the steps for creating a single executable application using one such
 tool, [postject][]:
 
 1. Create a JavaScript file:
-   ```console
-   $ echo 'console.log(`Hello, ${process.argv[2]}!`);' > hello.js
+   ```bash
+   echo 'console.log(`Hello, ${process.argv[2]}!`);' > hello.js
    ```
 
 2. Create a configuration file building a blob that can be injected into the
    single executable application (see
    [Generating single executable preparation blobs][] for details):
-   ```console
-   $ echo '{ "main": "hello.js", "output": "sea-prep.blob" }' > sea-config.json
+   ```bash
+   echo '{ "main": "hello.js", "output": "sea-prep.blob" }' > sea-config.json
    ```
 
 3. Generate the blob to be injected:
-   ```console
-   $ node --experimental-sea-config sea-config.json
+   ```bash
+   node --experimental-sea-config sea-config.json
    ```
 
 4. Create a copy of the `node` executable and name it according to your needs:
 
    * On systems other than Windows:
 
-   ```console
-   $ cp $(command -v node) hello
+   ```bash
+   cp $(command -v node) hello
    ```
 
    * On Windows:
 
    Using PowerShell:
 
-   ```console
-   $ cp (Get-Command node).Source hello.exe
+   ```bash
+   cp (Get-Command node).Source hello.exe
    ```
 
    Using Command Prompt:
 
-   ```console
-   $ for /F "tokens=*" %n IN ('where.exe node') DO @(copy "%n" hello.exe)
+   ```bash
+   for /F "tokens=*" %n IN ('where.exe node') DO @(copy "%n" hello.exe)
    ```
 
    The `.exe` extension is necessary.
@@ -70,17 +70,17 @@ tool, [postject][]:
 
    * On macOS:
 
-   ```console
-   $ codesign --remove-signature hello
+   ```bash
+   codesign --remove-signature hello
    ```
 
    * On Windows (optional):
 
    [signtool][] can be used from the installed [Windows SDK][]. If this step is
    skipped, ignore any signature-related warning from postject.
 
-   ```console
-   $ signtool remove /s hello.exe
+   ```bash
+   signtool remove /s hello.exe
    ```
 
 6. Inject the blob into the copied binary by running `postject` with
@@ -100,20 +100,20 @@ tool, [postject][]:
    To summarize, here is the required command for each platform:
 
    * On Linux:
-     ```console
-     $ npx postject hello NODE_SEA_BLOB sea-prep.blob \
+     ```bash
+     npx postject hello NODE_SEA_BLOB sea-prep.blob \
          --sentinel-fuse NODE_SEA_FUSE_fce680ab2cc467b6e072b8b5df1996b2
      ```
 
    * On Windows:
-     ```console
-     $ npx postject hello.exe NODE_SEA_BLOB sea-prep.blob \
+     ```bash
+     npx postject hello.exe NODE_SEA_BLOB sea-prep.blob \
          --sentinel-fuse NODE_SEA_FUSE_fce680ab2cc467b6e072b8b5df1996b2
      ```
 
    * On macOS:
-     ```console
-     $ npx postject hello NODE_SEA_BLOB sea-prep.blob \
+     ```bash
+     npx postject hello NODE_SEA_BLOB sea-prep.blob \
          --sentinel-fuse NODE_SEA_FUSE_fce680ab2cc467b6e072b8b5df1996b2 \
          --macho-segment-name NODE_SEA
      ```
@@ -122,17 +122,17 @@ tool, [postject][]:
 
    * On macOS:
 
-   ```console
-   $ codesign --sign - hello
+   ```bash
+   codesign --sign - hello
    ```
 
    * On Windows (optional):
 
    A certificate needs to be present for this to work. However, the unsigned
    binary would still be runnable.
 
-   ```console
-   $ signtool sign /fd SHA256 hello.exe
+   ```bash
+   signtool sign /fd SHA256 hello.exe
    ```
 
 8. Run the binary:

doc/api/synopsis.md

@@ -29,23 +29,23 @@ Now, create an empty project folder called `projects`, then navigate into it.
 
 Linux and Mac:
 
-```console
-$ mkdir ~/projects
-$ cd ~/projects
+```bash
+mkdir ~/projects
+cd ~/projects
 ```
 
 Windows CMD:
 
-```console
-> mkdir %USERPROFILE%\projects
-> cd %USERPROFILE%\projects
+```powershell
+mkdir %USERPROFILE%\projects
+cd %USERPROFILE%\projects
 ```
 
 Windows PowerShell:
 
-```console
-> mkdir $env:USERPROFILE\projects
-> cd $env:USERPROFILE\projects
+```powershell
+mkdir $env:USERPROFILE\projects
+cd $env:USERPROFILE\projects
 ```
 
 Next, create a new source file in the `projects`
@@ -73,8 +73,8 @@ server.listen(port, hostname, () => {
 
 Save the file, go back to the terminal window, and enter the following command:
 
-```console
-$ node hello-world.js
+```bash
+node hello-world.js
 ```
 
 Output like this should appear in the terminal:

doc/api/tls.md

@@ -285,8 +285,8 @@ failures, it is easy to not notice unnecessarily poor TLS performance. The
 OpenSSL CLI can be used to verify that servers are resuming sessions. Use the
 `-reconnect` option to `openssl s_client`, for example:
 
-```console
-$ openssl s_client -connect localhost:443 -reconnect
+```bash
+openssl s_client -connect localhost:443 -reconnect
 ```
 
 Read through the debug output. The first connection should say "New", for

doc/api/wasi.md

@@ -93,8 +93,8 @@ To run the above example, create a new WebAssembly text format file named
 
 Use [wabt](https://github.com/WebAssembly/wabt) to compile `.wat` to `.wasm`
 
-```console
-$ wat2wasm demo.wat
+```bash
+wat2wasm demo.wat
 ```
 
 ## Class: `WASI`