Combined Log IP Extraction
Isolate client IPs from Apache combined access logs for downstream processing.
const fs = require('fs').promises;
const ipAddresses = [];
const data = await fs.readFile('access.log', 'utf-8');
for (const line of data.split('\n')) {
if (line.trim()) {
ipAddresses.push(line.split(' ')[0]);
}
}
console.log(ipAddresses);package main
import (
"bufio"
"os"
"strings"
)
func main() {
file, _ := os.Open("access.log")
defer file.Close()
var ipAddresses []string
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := scanner.Text()
ip := strings.Fields(line)[0]
ipAddresses = append(ipAddresses, ip)
}
}ip_addresses = []
with open("access.log") as file:
for line in file:
ip_addresses.append(line.split()[0])# PowerShell 7+ equivalent
$ipAddresses = Get-Content "access.log" | ForEach-Object { ($_ -split ' ')[0] }
$ipAddressesUpdated 2 days ago
