Bash Uptime Command Reference (#22483)

* Bash Uptime Command Reference

Created the Bash Uptime Command Reference index.md file.

* fix: added a valid front matter block

guide/english/bash/bash-uptime/index.md

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+---
+title: Bash Uptime
+---
+# Bash Uptime
+
+The command  `uptime` displays the following:
+ *current time
+ *how long the system has been running
+ *how many users are currently logged on
+ *the system load averages (for the past 1, 5, and 15 minutes)
+
+### Usage
+
+`uptime [options]` Displays the amount of time the system has been consistently running when entered with no options.
+
+### Options
+
+ `-p`, `--pretty`   show uptime in pretty format
+ `-h`, `--help`     display this help and exit
+ `-s`, `--since`    system up since
+ `-V`, `--version`  output version information and exit
+ 
+### Example
+
+```bash
+[~]# uptime -p
+up 11 weeks, 3 days, 23 hours, 49 minutes
+```
+### References
+[uptime Linux Man Pages](https://linux.die.net/man/1/uptime)