Linux Commands Reference

import subprocess
import os

# Run a shell command and capture output
result = subprocess.run(
    ["ls", "-la", "/home"],
    capture_output=True,
    text=True
)
print(result.stdout)

# Search for files (equivalent to find)
import pathlib
# Find all .log files modified in last 24h
import time
now = time.time()
for path in pathlib.Path("/var/log").rglob("*.log"):
    if now - path.stat().st_mtime < 86400:
        print(path)

# Grep equivalent
import re
with open("/etc/hosts") as f:
    for line in f:
        if re.search(r"127\.\d+\.\d+\.\d+", line):
            print(line.strip())

# Process management
import psutil
for proc in psutil.process_iter(['pid', 'name', 'cpu_percent']):
    try:
        if proc.info['cpu_percent'] > 10:
            print(f"PID {proc.info['pid']}: {proc.info['name']}")
    except psutil.NoSuchProcess:
        pass