Linux

find /[FOLDER_NAME]/* -mtime +[OLDER_THAN_DAYS] -exec rm -rf {} \;

Example deletes all files and folders in tmp folder that are older than 180 days: find /tmp/* -mtime +180 -exec rm -rf {} \;

You can see a lot of good information for debugging and fixing errors on your Ubuntu server with journalctl and dmesg

journalctl --since "1 days ago"

journalctl --since "10 hours ago"

journalctl --since "12 hours ago" -p 3 -x --utc --no-pager

dmesg | less

dmesg -H --time-format iso| less

Resources:

https://unix.stackexchange.com/questions/50098/linux-network-troublesho…

WP-Cron is reliable enough for low-stakes sites, but it is a poor fit when publishes, renewals, imports, or client workflows must run on time. This guide explains when server cron is worth it, how to switch safely, and how to test the right way.

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

If a site cutover, mail change, or API move is still resolving the old address, this guide shows the current Ubuntu DNS flush command, how to identify which local resolver is really in play, and what to verify when flushing does not solve it.

sudo systemctl stop apport
sudo systemctl stop whoopsie 
sudo systemctl disable apport
sudo systemctl disable whoopsie
sudo aptitude purge apport whoopsie

Source: https://askubuntu.com/questions/1245078/woopsie-upload-all-process-cons…

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

Possible fix:

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

Skype start command: nice -n 19 rm -r ~/.config/skypeforlinux/Cache/* ; nice -n 19 /usr/bin/skypeforlinux %U skypeforlinux --disable-accelerated-video-decode=true

Skype start command vanilla: /usr/bin/skypeforlinux %U

In firefox I have enabled a couple of tweaks described here for hardware acceleration: https://askubuntu.com/questions/1216192/why-is-kubuntu-using-much-more-…

Maybe more info here: https://itectec.com/ubuntu/ubuntu-why-is-kubuntu-using-much-more-cpu-th…