Tag: linux

All the articles with the tag "linux".

• Linux su with custom shell

  Updated: 5 Apr, 2026

  Use su with a specific shell to switch users without the default login shell — useful when /etc/passwd points to something unexpected.

• Logrotate & Compression

  Updated: 5 Apr, 2026

  logrotate keeps your /var/log from eating the disk — configure rotation schedules, compression, and retention for any service log.

• MySQL CLI: From Connection to Maintenance

  Updated: 5 Apr, 2026

  Master MySQL from the command line: connect, query databases, manage users, repair tables, optimize—everything you keep Googling, one reference.

• Three ways to upload ISOs to Proxmox

  Updated: 5 Apr, 2026

  Web UI, wget, or direct file copy — pick your ISO upload method based on what you’re doing.

• Recursively delete all empty subdirectories

  Updated: 5 Apr, 2026

  Clean up empty directories with find and rmdir — safely prune orphaned dirs left after file migrations.

• Remove all old installed but unused kernels

  Updated: 5 Apr, 2026

  Old kernels pile up in /boot and eat disk space — safely remove unused kernels on Ubuntu and Debian with apt and dpkg.

• Bulk rename files in bash

  Updated: 5 Apr, 2026

  Remove spaces and special characters from filenames using bash loops, rename, find, and parameter expansion tricks.

• When systemd swallows your service logs

  Updated: 5 Apr, 2026

  Service restart not showing logs? systemd hides stdout. Learn journalctl, systemctl status, and debugging workflows for silent systemd failures.

• Sed 101

  Updated: 5 Apr, 2026

  sed is the stream editor for making text substitutions, deletions, and insertions in files — the patterns you'll use 90% of the time.

• SSH keys and secure file copy

  Updated: 5 Apr, 2026

  Generate SSH keys, set up passwordless auth, configure SSH, and transfer files securely with SCP — the foundation of headless Linux work.

• Why You Should Switch to ZShell (zsh)

  Updated: 5 Apr, 2026

  Switch your default shell to zsh on Linux — why zsh beats bash, installation, Oh My Zsh setup, essential plugins, and the gotcha that still catches everyone.

• Browser GPU Acceleration on Linux in 2026

  30 Mar, 2026

  GPU acceleration in Chrome and Firefox on Linux in 2026 — VA-API, Wayland, WebGPU, and the right flags to make it all actually work.