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Ubuntu add-apt-repository command not found error and solutionnixCraft...
{Updated} Learn how to fix the 'sudo: add-apt-repository command not found' error on Ubuntu or Debian Linux when you try to install PPA.The post Ubuntu add-apt-repository command not found error and...
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Linux uninstall package / software using the CLInixCraft
How do I uninstall package or software using the command line in Linux operating systems? How can I uninstall software on a Debian or Ubuntu Linux? Can you tell me command to uninstall package on a...
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Linux / Unix Desktop Fun: Text Mode ASCII-art Box and Comment DrawingnixCraft...
How about a little Linux project that brings fun back into your life? Use the text filter Boxes command to create email signatures or regional comments in any programming language using a text editor...
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How to Change Hostname on Ubuntu 20.04nixCraft
How do I change the hostname on Ubuntu 20.04 LTS Linux system permanently?The post How to Change Hostname on Ubuntu 20.04 appeared first on nixCraft.
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Linux / Unix: Find And Remove Files With One Command On FlynixCraft Updated...
I am new to Unix and Linux command line. How do I find and delete all files (say all '*.bak') under Linux / UNIX-like operating systems using a shell prompt?The post Linux / Unix: Find And Remove Files...
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How to save terminal output to a file under Linux/UnixnixCraft
How do I save the terminal output to a file when using BASH/KSH/CSH/TCSH under Linux, macOS, *BSD or Unix-like operating systems?The post How to save terminal output to a file under Linux/Unix appeared...
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How To Configure Firewall with UFW on Ubuntu 20.04 LTSnixCraft
How do I set up and configure firewall with UFW on Ubuntu 20.04 LTS server?The post How To Configure Firewall with UFW on Ubuntu 20.04 LTS appeared first on nixCraft.
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19 Ubuntu / Debian Linux apt Command ExamplesnixCraft Updated Tutorials/Posts
{Updated}apt command guide for new Linux users/sysadmins/developers that works on a Debian, Ubuntu and other apt based distrosThe post 19 Ubuntu / Debian Linux apt Command Examples appeared first on...
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Systemd systemctl list all failed units/services on LinuxnixCraft
Is there is a command to print list all failed units or services when using systemd on Linux? Can you tell me the systemctl command to show failed services on Linux?The post Systemd systemctl list all...
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sed Case Insensitive Search Matching and ReplacementnixCraft Updated...
I would like to match all combination of word - foo, FOO, FoO and so on while replacing or performing other operations using sed command. How do I perform a case-insensitive search using sed under...
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How To Create a Sudo User on Ubuntu 20.04 LTSnixCraft
How do I create a new user with sudo access on Ubuntu 20.04 LTS Linux server? Can you tell me command to add sudo user on Ubuntu 20.04 Linux server?The post How To Create a Sudo User on Ubuntu 20.04...
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Linux / UNIX Delete a filenixCraft Updated Tutorials/Posts
{Updated} How do I delete a file under a Linux / UNIX / *BSD / AIX / HP-UX operating system using command line options?The post Linux / UNIX Delete a file appeared first on nixCraft.
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Linux Find Out Which Process Is Listening Upon a PortnixCraft Updated...
{Updated} How do I find out running processes were associated with each open port on Linux? How do I find out what process has open TCP port # 111 or UDP port 7000 under Linux using the CLI?The post...
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Ubuntu 20.04 set up WireGuard VPN servernixCraft
How can I install and set up WireGuard VPN server on an Ubuntu 20.4 LTS Linux server? How do I configure Ubuntu 20.04 as the WireGuard VPN server?The post Ubuntu 20.04 set up WireGuard VPN server...
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Linux / UNIX create soft link with ln commandnixCraft Updated Tutorials/Posts
{Updated} What is a soft ('symbolic') link? How do I create a soft link (symbolic link) under UNIX or Linux operating system?The post Linux / UNIX create soft link with ln command appeared first on...
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Linux / UNIX create soft link with ln commandnixCraft Updated Tutorials/Posts
{Updated} What is a soft ('symbolic') link? How do I create a soft link (symbolic link) under UNIX or Linux operating system?The post Linux / UNIX create soft link with ln command appeared first on...
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Ubuntu install vnstat console network traffic monitornixCraft
How do I install vnstat is a console-based network traffic monitor on Ubuntu to keep a log of the 5-minute interval, hourly, daily, monthly, and yearly network traffic for the selected interface?The...
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How to disable ssh password login on Linux to increase securitynixCraft...
{Updated} This page explains how to disable ssh password login on Linux permanently and only use ssh keys for login, which best security practice. So, first, we need to set up a normal user account and...
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How To Use grep Command In Linux / UNIXnixCraft Updated Tutorials/Posts
{Updated} The grep command is used to search text. It searches the given file for lines containing a match to the given strings or words. It is one of the most useful commands on Linux and Unix-like...
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Ubuntu 20.04 LTS Set Up OpenVPN Server In 5 MinutesnixCraft
I am a new Ubuntu Linux 20.04 LTS server system administrator. How can I set up an OpenVPN Server on an Ubuntu Linux version 20.04 LTS server to shield my browsing activity from bad guys on public...
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