Bash & LinuxOverviewCopy pageBash & Linux Command-line and server baseline notes. Jump in via the cards or the sidebar. OverviewSSH KeysSSH HardeningUbuntu Base SetupDebian Base SetupRHEL Base SetupCheck Disk UsageCustom Systemd ServiceDelete Old FilesDelete Dot FilesPWA InstallDigLog QueryingLast updated on March 18, 2026Send Email (DOCX Body)SSH Keys