Ubuntu Linux related tutorial/FAQ

How to install networked HP printer and scanner on Ubuntu Linux

last updated August 10, 2019 in Hardware, Linux, Ubuntu Linux

I have HP Officejet Pro printer and scanner. How do I install HP Officejet Pro network printers and scanners on Ubuntu Linux? How can I install HP printer on Ubuntu Linux?

How to check CPU temperature on Ubuntu Linux

last updated August 5, 2019 in Hardware, Linux, Package Management, Ubuntu Linux

How do I check CPU temperature in Ubuntu Linux using a command line and GUI tools on my Thinkpad laptop or Desktop computer?

How to install htop on Ubuntu Linux using apt

last updated July 30, 2019 in Linux, Package Management, Ubuntu Linux

I like htop output, but it is not installed by default on my Ubuntu cloud server. How do I install htop on Ubuntu Linux 18.04 LTS server?

Can I delete /var/cache/apt/archives for Ubuntu/Debian Linux?

last updated July 23, 2019 in Debian / Ubuntu, File system, Linux, Ubuntu Linux

I noticed that /var/cache/apt/archives/ taking lots of disk space on my AWS EC2 cloud server powered by Debian Linux. Can I delete /var/cache/apt/archives/ folder? Is it safe to remove all files? Do we absolutely necessary to keep all these files?

How to set up automatic updates for Ubuntu Linux 18.04

last updated July 22, 2019 in Linux, Ubuntu Linux

How do I configure automatic updates for Ubuntu Linux 18.04 LTS “Bionic Beaver” server?

How to delete a UFW firewall rule on Ubuntu / Debian Linux

last updated July 14, 2019 in Debian / Ubuntu, Iptables, Linux, Ubuntu Linux

How do I remove and delete a UFW firewall rule running on Ubuntu or Debian Linux?

How to check running process in Ubuntu using command line

last updated April 17, 2019 in Linux, Ubuntu Linux

I am a new sysadmin for the Ubuntu operating system. How do I check running process in Ubuntu using the command line option?

nixCraft