/tmp Cleanup Shell Script for Linux (find, Age, Allowlist and Safety)
Clean stale files under /tmp safely with a Bash script: mtime threshold, size summary, allowlist paths, dry-run mode,…
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Bash getopts Shell Script: Parse -d -r Flags for Linux CLI Tools
Build proper Linux CLI scripts with getopts: -h help, -d directory, -r retention days, validate combinations, and print…
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Bash Functions Shell Script: Reusable Blocks, Arguments and local Variables
Structure Linux Bash scripts with functions: pass arguments, use local variables, return codes, and a small deploy-style example…
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Bash Read CSV File Line by Line Shell Script (IFS, Validation, Logging)
Parse CSV files in Bash safely: while read loop, IFS commas, skip header row, validate fields, and log…
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/etc Configuration Backup Shell Script for Linux (tar, Retention, Restore Hint)
Back up /etc on Linux with a Bash script: compressed tar archives, dated filenames, retention cleanup, and notes…
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WordPress Backup and Restore on Linux: Database, wp-content and Automation
Back up WordPress on Linux: mysqldump wp tables, rsync wp-content, gzip archives, cron/systemd automation, off-site copy, restore order,…
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How to Install Nginx on Linux: Server Blocks, Static Sites and proxy_pass Basics
Install Nginx on Ubuntu and AlmaLinux: package install, sites-available layout, first server block, nginx -t, serve static HTML,…
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Reset Root Password on Linux: GRUB Single-User Mode and Recovery (Ubuntu/RHEL)
Reset forgotten Linux root password: GRUB boot menu, edit linux line init=/bin/bash, remount rw, passwd root, cloud VPS…
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Ubuntu apt update and upgrade: Full Guide (upgrade, full-upgrade, autoremove, reboots)
Master Ubuntu package updates: apt update vs upgrade vs full-upgrade, autoremove, list upgradable packages, apt hold, kernel reboot…
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Linux Symbolic Links: ln -s, Absolute Paths, Broken Links and Web Deploys
Create Linux symbolic links with ln -s: syntax, ls -l, web deploy current/release pattern, find broken links, hard…
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