Bash Script Library — 20 Production-Ready Scripts for Linux SysAdmins
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Every Linux SysAdmin has a folder of bash scripts they’ve written over the years. The problem is that folder stays on your work laptop — and when you start a new job or land a new client, you write everything from scratch all over again.
The Bash Script Library solves that. 20 production-ready scripts tested on RHEL 8/9 and CentOS Stream, ready to run in minutes.
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WHAT’S INCLUDED
System monitoring and health: Script 01 generates a full system health report including CPU, memory, disk, load average, failed services, and recent errors — and emails you if anything is critical. Script 04 finds your top 20 largest directories and files. Script 05 scans all open ports and current firewall rules.
Security: Script 02 audits all user accounts, sudo access, and SSH authorized keys. Script 06 monitors critical services and auto-restarts them if they go down. Script 10 generates a daily failed login attempts report with top attacking IPs. Script 20 collects forensic evidence during an incident response.
[IMAGE MARKER: Script 20 incident response output]
Backups: Script 11 backs up all MySQL or PostgreSQL databases with automatic rotation. Script 16 backs up all critical config files to a dated directory. Both include email alerts on failure.
Automation: Script 07 deploys SSH keys to multiple servers in one run. Script 08 generates a full hardware and software inventory of any server. Script 19 creates multiple user accounts from a CSV file. Script 18 extends LVM logical volumes with a single confirmation prompt.
Maintenance: Script 03 cleans up old logs and compresses large ones. Script 09 checks SSL certificate expiry on all your domains. Script 13 generates a security patch status report. Script 14 removes unused Docker images, containers, and volumes. Script 17 applies security updates and flags if a reboot is required.
HOW TO USE IT
Download the ZIP, extract it, make the scripts executable, and edit the variables at the top of each script. Every script has an ALERT_EMAIL variable and threshold variables you can customize. Then run them directly or add to cron for automated monitoring.
bash
chmod +x *.sh
bash 01_system_health_check.shFull README with cron recommendations is included.
PRICING
The Bash Script Library is available for $37 — a one-time purchase with free lifetime updates.
👉 Get the Bash Script Library here
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FAQ
What Linux distributions are these tested on? RHEL 8, RHEL 9, and CentOS Stream 9.
Do the scripts work on Ubuntu or Debian? Most scripts work with minor modifications. Scripts using yum/dnf or firewalld will need adjustments for Ubuntu.
Can I modify the scripts? Yes — personal and commercial use license included.
Do I need root access to run these? Most scripts require sudo or root access for system-level operations.
Are updates included? Yes — free lifetime updates with every purchase.
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