Fixing shell commands, adding YAML standards for memory metrics input plugin docs. Fixes #1817. (#1818)

Signed-off-by: Eric D. Schabell <[email protected]>

Author: eschabell

pipeline/inputs/memory-metrics.md

@@ -8,26 +8,42 @@ To get memory and swap usage from your system, you can run the plugin from the c
 
 ### Command line
 
-Run the following command from the command line:
+Run the following command from the command line, noting this is for a Linux machine:
 
-```bash
-fluent-bit -i mem -t memory -o stdout -m '*'
+```shell
+$ fluent-bit -i mem -t memory -o stdout -m '*'
 ```
 
 Which outputs information similar to:
 
 ```text
-Fluent Bit v1.x.x
-* Copyright (C) 2019-2020 The Fluent Bit Authors
-* Copyright (C) 2015-2018 Treasure Data
+Fluent Bit v4.0.3
+* Copyright (C) 2015-2025 The Fluent Bit Authors
 * Fluent Bit is a CNCF sub-project under the umbrella of Fluentd
 * https://fluentbit.io
 
-[2017/03/03 21:12:35] [ info] [engine] started
-[0] memory: [1488543156, {"Mem.total"=>1016044, "Mem.used"=>841388, "Mem.free"=>174656, "Swap.total"=>2064380, "Swap.used"=>139888, "Swap.free"=>1924492}]
-[1] memory: [1488543157, {"Mem.total"=>1016044, "Mem.used"=>841420, "Mem.free"=>174624, "Swap.total"=>2064380, "Swap.used"=>139888, "Swap.free"=>1924492}]
-[2] memory: [1488543158, {"Mem.total"=>1016044, "Mem.used"=>841420, "Mem.free"=>174624, "Swap.total"=>2064380, "Swap.used"=>139888, "Swap.free"=>1924492}]
-[3] memory: [1488543159, {"Mem.total"=>1016044, "Mem.used"=>841420, "Mem.free"=>174624, "Swap.total"=>2064380, "Swap.used"=>139888, "Swap.free"=>1924492}]
+______ _                  _    ______ _ _             ___  _____
+|  ___| |                | |   | ___ (_) |           /   ||  _  |
+| |_  | |_   _  ___ _ __ | |_  | |_/ /_| |_  __   __/ /| || |/' |
+|  _| | | | | |/ _ \ '_ \| __| | ___ \ | __| \ \ / / /_| ||  /| |
+| |   | | |_| |  __/ | | | |_  | |_/ / | |_   \ V /\___  |\ |_/ /
+\_|   |_|\__,_|\___|_| |_|\__| \____/|_|\__|   \_/     |_(_)___/
+
+
+[2025/07/01 14:44:47] [ info] [fluent bit] version=4.0.3, commit=f5f5f3c17d, pid=1
+[2025/07/01 14:44:47] [ info] [storage] ver=1.5.3, type=memory, sync=normal, checksum=off, max_chunks_up=128
+[2025/07/01 14:44:47] [ info] [simd    ] disabled
+[2025/07/01 14:44:47] [ info] [cmetrics] version=1.0.3
+[2025/07/01 14:44:47] [ info] [ctraces ] version=0.6.6
+[2025/07/01 14:44:47] [ info] [input:mem:mem.0] initializing
+[2025/07/01 14:44:47] [ info] [input:mem:mem.0] storage_strategy='memory' (memory only)
+[2025/07/01 14:44:47] [ info] [sp] stream processor started
+[2025/07/01 14:44:47] [ info] [engine] Shutdown Grace Period=5, Shutdown Input Grace Period=2
+[2025/07/01 14:44:47] [ info] [output:stdout:stdout.0] worker #0 started
+[0] memory: [[1751381087.225589224, {}], {"Mem.total"=>3986708, "Mem.used"=>560708, "Mem.free"=>3426000, "Swap.total"=>0, "Swap.used"=>0, "Swap.free"=>0}]
+[0] memory: [[1751381088.228411537, {}], {"Mem.total"=>3986708, "Mem.used"=>560708, "Mem.free"=>3426000, "Swap.total"=>0, "Swap.used"=>0, "Swap.free"=>0}]
+[0] memory: [[1751381089.225600084, {}], {"Mem.total"=>3986708, "Mem.used"=>561480, "Mem.free"=>3425228, "Swap.total"=>0, "Swap.used"=>0, "Swap.free"=>0}]
+[0] memory: [[1751381090.228345064, {}], {"Mem.total"=>3986708, "Mem.used"=>561480, "Mem.free"=>3425228, "Swap.total"=>0, "Swap.used"=>0, "Swap.free"=>0}]
 ```
 
 ## Threading
@@ -37,34 +53,34 @@ You can enable the `threaded` setting to run this input in its own
 
 ### Configuration file
 
-In your main configuration file append the following `Input` and `Output` sections:
+In your main configuration file append the following:
 
 {% tabs %}
-{% tab title="fluent-bit.conf" %}
-
-```python
-[INPUT]
-    Name   mem
-    Tag    memory
-
-[OUTPUT]
-    Name   stdout
-    Match  *
-```
-
-{% endtab %}
-
 {% tab title="fluent-bit.yaml" %}
 
 ```yaml
 pipeline:
     inputs:
         - name: mem
           tag: memory
+
     outputs:
         - name: stdout
           match: '*'
 ```
 
 {% endtab %}
-{% endtabs %}
+{% tab title="fluent-bit.conf" %}
+
+```text
+[INPUT]
+    Name   mem
+    Tag    memory
+
+[OUTPUT]
+    Name   stdout
+    Match  *
+```
+
+{% endtab %}
+{% endtabs %}