Code & Scripts

Bash Scripting for Sysadmins Reference Guide

The Linux sysadmin's go-to bash reference — patterns, variables, loops, and practical automation scripts in one printable guide.

What's Inside

📦10-section bash reference guide — printable Markdown you can render to PDF or keep open in any viewer
📦Quick-reference cheat sheet — variables, conditionals, loops, and string operations at a glance
📦6 production-ready .sh templates — drop-in scripts you adapt in minutes, not hours:
📦01-error-trap.sh — the correct script skeleton with safety defaults every script needs
📦02-log-archiver.sh — compress and timestamp-archive logs older than N days, cron-ready
📦03-disk-alert.sh — monitor mount points and alert when thresholds are crossed
📦04-service-health-check.sh — check systemd services, optionally restart failed ones
📦05-backup-verify.sh — confirm backups exist, are non-empty, and are current
📦06-user-provision.sh — batch-create users from CSV with --dry-run mode included

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Quality Score

9/10