This article explains how to repeat a command every X seconds, in 2 ways: using watch, and using sleep in a while loop (avoiding time drifting).
Source: How To Repeat A Command Every X Seconds On Linux – Linux Uprising Blog
Category: Linux
Free up Disk Space – Clear Systemd Journal Logs in Ubuntu 20.04
Going to free up Ubuntu system disk space? Try clearing the systemd journal logs, it may free up a few GB of space.
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You can also edit the configuration file to limit the journal log disk usage (100 MB for example).
Source: Free up Disk Space – Clear Systemd Journal Logs in Ubuntu 20.04 | UbuntuHandbook
The Easiest Way to Install OpenVPN Server on Raspberry Pi
OpenVPN is a service to host your own VPN server, without using third-party servers.
A VPN is a secured connection between two networks, for example between your phone and your home.
In this tutorial, I’ll give you a step-by-step method to install it quickly on Raspberry Pi.
Source: The Easiest Way to Install OpenVPN Server on Raspberry Pi – RaspberryTips
Change CPU Governor And Frequencies On Linux With cpupower-gui (New Release)
cpupower-gui is a tool that makes it easy to change the CPU governor as well as the CPU frequency limits on Linux.
Source: Change CPU Governor And Frequencies On Linux With cpupower-gui (New Release) – Linux Uprising Blog
Sudo Permission Denied with Redirect or Pipe [Solutions]
In this tutorial, I will show you how to use the sudo command when using it with redirect or pipe. When using sudo with redirection (>) or pipe (|), you will get Permission denied error message in bash output. Further here, I will show you different ways to fix this problem.
Source: Sudo Permission Denied with Redirect or Pipe [Solutions] (LinOxide)
Schedule Commands And Scripts In Linux With Zeit (GUI For Cron And At)
Zeit is a Qt GUI for cron and at, allowing you to schedule recurring or one time tasks. The application also allows setting an alarm and a timer.
Other features include the ability to add, edit and delete environment variables for crontab, as well as optional PolKit support for root actions.
Source: Schedule Commands And Scripts In Linux With Zeit (GUI For Cron And At) – Linux Uprising Blog
How To Sandbox Processes With Systemd On Ubuntu 20.04
Sandboxing is a computer security technique that focuses on isolating a program or process from parts of a system that it does not need to interact with during normal operation. In this tutorial you will run through a practical demonstration of how to use systemd’s sandboxing techniques on Ubuntu 20.04 for an efficient workflow to implement and to test these techniques. Any process that runs on a Linux system that uses systemd can be made more secure with these techniques.
Source: How To Sandbox Processes With Systemd On Ubuntu 20.04 | DigitalOcean
How Emulate an Amiga 1200 on Your Linux PC or Raspberry Pi
Emulate your ultimate Amiga computer. … Emulation is a great way to get interested in the Amiga scene and there are a myriad of emulators for different platforms.
Source: How Emulate an Amiga 1200 on Your Linux PC or Raspberry Pi | Tom’s Hardware
Create A Bootable USB Drive By Simply Copying The ISO To The USB With Ventoy (Linux And Windows)
Ventoy is a fairly new open source tool to create bootable USB drives using Linux or Microsoft Windows ISO files. You install this tool to a USB drive, then simply copy some ISO files to the USB drive and you can boot from it with no other changes (so without having to reformat the USB drive every time you want to create a bootable USB drive, and without having to extract the ISO file contents).
How To Find Hard Disk Drive Details In Linux
This guide explains how to find Hard disk drive details in Linux. Using this guide, we can find the hard disk make, type, size, firmware version in Linux.
Source: How To Find Hard Disk Drive Details In Linux – OSTechNix
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