Bash Error Handling Shell Script: trap, set -euo pipefail and Safe Wrappers
Write safer Bash scripts with set -euo pipefail, ERR/EXIT traps, structured logging, and a reusable wrapper that records…
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Elasticsearch Index Cleanup Shell Script (Auto-Delete Old Indices)
Automatically delete old date-suffixed Elasticsearch or OpenSearch indices with a Bash script, controlling disk usage without needing Curator…
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Docker Volume Backup Shell Script for Linux (tar + Restore)
Back up and restore Docker named volumes on Linux with a Bash script using a helper container and…
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rclone Offsite Backup Shell Script (Upload Linux Backups to Cloud Storage)
Automate offsite backup uploads on Linux with rclone — sync local backup folders to S3, Backblaze B2, or…
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Fail2ban Ban Report Shell Script for Linux (Daily Summary)
Generate a daily Fail2ban ban report on Linux. List banned IPs per jail, top attackers, and email summary…
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Linux Backup Verification Shell Script (Test Restore Integrity)
Verify backup integrity on Linux with a Bash script. Test gzip archives, SQL dumps, and tar files before…
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Nginx Config Test and Safe Reload Shell Script for Linux
Safely test and reload Nginx on Linux with a Bash script. Validates config before reload and rolls back…
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MongoDB Backup Shell Script for Linux (mongodump Automation)
Automate MongoDB backups on Linux with mongodump, archive compression, retention cleanup, and cron scheduling.
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Systemd Journal Vacuum Shell Script (Log Disk Cleanup)
Free disk space on Linux by vacuuming systemd journal logs with a safe Bash script. Set size limits…
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Linux Inode Usage Monitor Shell Script (Prevent Disk Full)
Monitor inode usage on Linux filesystems with a Bash script. Alert before small-file exhaustion crashes MySQL, mail, or…
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