📂 Tutorial

TutorialTrading

📅 Nov 21, 2025 👤 Logic Encoder ⏱️ 29 min

At a glance: The buy/sell volume ratio divides total buy volume by total sell volume over a given window. On MEXC spot pairs, a ratio above 1.5 indicates buyers are controlling price direction; below 0.7 means sellers dominate. This ratio updates in real time alongside six other metrics — net flow, VWAP, volatility, trading direction, […]

Tutorial

📅 Sep 11, 2025 👤 Logic Encoder ⏱️ 19 min

Quick answer: wsl --export Ubuntu C:\WSL-Backups\ubuntu-backup.tar creates a full snapshot of your WSL2 distribution — every file, package, SSH key, and config. A minimal Ubuntu with development tools exports to 500 MB–1 GB in 1–5 minutes. Restore with wsl --import Ubuntu C:\WSL\Ubuntu C:\WSL-Backups\ubuntu-backup.tar. After any import, WSL2 defaults to logging in as root — fix […]

TutorialPython

📅 Sep 10, 2025 👤 Logic Encoder ⏱️ 21 min

Quick answer: ModuleNotFoundError almost always means the package was installed into a different Python environment than the one running your script — not that it is missing from the system. Always install with python3 -m pip install, never bare pip. If pip reports success but the error persists: run python3 -m pip show <package>, note […]

Tutorial

📅 Sep 9, 2025 👤 Logic Encoder ⏱️ 17 min

  Quick answer: On Windows 10 build 20H1 (19041+) and all Windows 11 versions: open PowerShell as Administrator, run wsl --install, restart, then create a Linux username — the whole process takes under 5 minutes. On older Windows 10 builds 18362–19040: enable two Windows features via dism.exe, download the WSL2 kernel update from aka.ms/wsl2kernel, run […]

Tutorial

📅 Sep 3, 2025 👤 Logic Encoder ⏱️ 22 min

Quick answer: On Ubuntu 22.04/24.04 with ext4 or XFS, create an 8 GB swap file in 5 commands: dd to allocate, chmod 600, mkswap, swapon, then add one line to /etc/fstab to survive reboots. On ZFS (OpenZFS 2.1+), create a dedicated zvol with primarycache=metadata and logbias=throughput — without these two parameters, heavy swap activity evicts […]

Tutorial

📅 Aug 17, 2025 👤 Logic Encoder ⏱️ 21 min

Quick answer: The fastest WSL file transfer method depends on what you are moving — File Explorer works for one-off files, cp for single copies, rsync -avP for directories (resumes interrupted transfers, skips unchanged files), and tar -czf for large archives going to Windows. Cross-filesystem transfers between /mnt/c/ and /home/ run at 200–500 MB/s on […]