Nginx Error Log

const re = new RegExp("^(\\d{4}/\\d{2}/\\d{2} \\d{2}:\\d{2}:\\d{2}) \\[(\\w+)\\] (\\d+)#(\\d+): (.*)$", "");
const input = "2023/10/11 10:00:00 [error] 1234#5678: *1 connect() failed";
const match = input.match(re);
console.log(match ? match[0] : null);

import re

pattern = re.compile(r"^(\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2}) \[(\w+)\] (\d+)#(\d+): (.*)$")
input_text = "2023/10/11 10:00:00 [error] 1234#5678: *1 connect() failed"
for m in pattern.finditer(input_text):
    print(m.group(0))

package main

import (
	"fmt"
	"regexp"
)

func main() {
	re := regexp.MustCompile(`^(\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2}) \[(\w+)\] (\d+)#(\d+): (.*)$`)
	input := `2023/10/11 10:00:00 [error] 1234#5678: *1 connect() failed`
	for _, match := range re.FindAllString(input, -1) {
		fmt.Println(match)
	}
}