Category: Trouble shooting

Fix invalid or corrupted package (PGP signature) in Arch Linux

How To Fix “invalid or corrupted package (PGP signature)” Error In Arch Linux

Today, I tried to upgrade my Arch Linux server using command ‘sudo pacman -Syu’, and I got the following error: […] :: File /var/cache/pacman/pkg/libpsl-0.16.1-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)). Do you want...

Starting full system upgrade… there is nothing to do

How To Solve “Starting full system upgrade… there is nothing to do” Issue In Arch Linux

I recently noticed that my Arch Linux doesn’t update/upgrade to latest version. I thought there wasn’t any new updates yet. I visited Arch Linux website and noticed that there are plenty of updates are already available....

Display CPU Usage From Commandline

How To Display CPU Usage From Commandline

This tutorial describes how to display CPU usage from commandline using mpstat utility. Most of us use top command to show the CPU usage and the running processes. Just like top command, mpstat also displays the...

Clear A Specific Command From Bash History

How To Clear A Specific Command From Bash History In Linux

As we all know, history command is used to view the list of recently-executed commands in Terminal. Not just commands, It will show you the list of recent activities in your Terminal. Every commands you...

Transfer Large Files Over Network In Linux

How To Quickly Transfer Large Files Over Network In Linux And Unix

Today, I had to reinstall my Ubuntu server that I use often to test different applications. My Ubuntu server has over 200 GB data, and I don’t want to lose it. I can transfer those...