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Check if file or directory exists, multiple ways: https://linuxize.com/pos

Use journalctl and dmesg to investigate Ubuntu server problems, filter logs by time and service, check previous boots, and give your team a clearer handover.

Learn when to replace WordPress WP-Cron with server cron, choose a sensible interval, and migrate safely with commands and checks for critical business tasks.

find [FOLDER_NAME]/* -prune -mtime +14 -exec rm {} \;

Make Nagios HTTPS checks catch useful failures. Check content, certificate trust, expiry and redirects, then migrate check_http safely and give alerts clear owners.

Flush Ubuntu’s DNS cache, trace stale website or API lookups, and verify the service is working before you sign off a migration or server change.

Diagnose a CPU-heavy whoopsie-upload-all process, stop Ubuntu crash uploads safely, and choose between disabling, masking, or removing the packages.

A nice little guide: https://tecadmin.net/run-shell-script-as-sy

Possible fix:

Delete the cache: ~/.config/skypeforlinux/Cache/

In firefox I have enabled a couple of tweaks described here for hardware acceleration:

Prevent broken text in MySQL exports by checking column metadata, choosing the right dump charset, and proving the restore before migration handoff.

Use "xdotool key Menu" in a global shortcut. That's it!

Quick note: xinput map-to-output 11 eDP

Missing icons or a broken KDE Plasma panel after a Kubuntu upgrade? Follow a careful repair sequence, check Qt versions, and back up your layout before resetting it.

Fix invalid multibyte string errors in R, identify CSV encoding problems, and build reliable imports that preserve customer names, addresses and symbols.

Keep homepage-only PHP predictable across plain PHP, WordPress, Symfony, and Laravel, with practical checks for campaign links, staging paths, and caching.

Installation on Ubuntu 20.04

The text editor "nano" is an easy to use editor for linux etc.

Here are som great options to add:

File: ~/.nanorc

Recover an old website with HTTrack or the Wayback Machine. Learn what each can save, check archive gaps, and plan a rebuild that restores useful business pages.

Work out whether your Honda Click 125i is stalling or using Idling Stop, check coolant safely, and give your mechanic a clear account of the problem.