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Howto Find Out or Learn Harddisk Size in Linux or UNIX

nixCraft - Thu, 03/28/2024 - 13:35
{Updated} There are many ways to show btrfs, zfs, and ext4/3 disk info in Linux and Unix. Here are a few of the most common commands for developers and sysadmins to find out their hard disk size using the CLI.The post Howto Find Out or Learn Harddisk Size in Linux or UNIX appeared first on nixCraft. 2023-07-29T02:20:00Z 2023-07-29T02:20:00Z Vivek Gite

How to run script after mounting NFS with systemd in Linux

nixCraft - Thu, 03/28/2024 - 13:35
If you need to execute a shell script or command following the mounting of a particular file system in Linux using systemd, you can do so. For instance, you can run a backup task when a USB hard disk is mounted or adjust specific options at runtime when NFS is mounted. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to run script after mounting NFS with systemd in Linux appeared first on nixCraft. 2023-07-27T17:56:59Z 2023-07-27T17:56:59Z Vivek Gite

How to Mount NFS File System in Ubuntu Linux

nixCraft - Thu, 03/28/2024 - 13:35
{Updated} NFS (Network File System) client allows you to access the shared directory from the Linux client. The computer sharing the directory is called the NFS server (it can be a NAS server, too), and the computers or devices connecting to that server are called clients. The clients need to use the mount command to access the shared directory.The post How to Mount NFS File System in Ubuntu Linux appeared first on nixCraft. 2023-07-27T11:36:00Z 2023-07-27T11:36:00Z Vivek Gite

How Do I install .deb Packages in Ubuntu Linux Using the CLI or GUI?

nixCraft - Thu, 03/28/2024 - 13:35
{Updated} You need to use the dpkg command or apt-get command/apt command, which is a package manager from shell/command prompt under a Debian and Ubuntu Linux. You can use this tool to install, build, remove and manage packages. The dpkg itself is controlled entirely via command line parameters. Let us see how to install .deb package file in Ubuntu Linux using the CLI.The post How Do I install .deb Packages in Ubuntu Linux Using the CLI or GUI? appeared first on nixCraft. 2023-07-27T11:31:00Z 2023-07-27T11:31:00Z Vivek Gite

How to check for Wayland or Xorg (X11) Linux desktop

nixCraft - Thu, 03/28/2024 - 13:35
Am I using X11 (Xorg) or Wayland? Here is how to check for Wayland or Xorg (X11) Linux desktops using the CLI and GUI options. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to check for Wayland or Xorg (X11) Linux desktop appeared first on nixCraft. 2023-07-25T02:29:20Z 2023-07-25T02:29:20Z Vivek Gite

How to check for ssh connectivity in a shell script

nixCraft - Thu, 03/28/2024 - 13:35
Let us see how to check for ssh connectivity in a shell script running under macOS, FreeBSD, or Linux/Unix desktop using BatchMode=yes and ConnectTimeout=$VALUE options. This simple trick helps write a wrapper script that does other things, such as making a backup or running external command agents such as Salt or Ansible to do other tasks. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to check for ssh connectivity in a shell script appeared first on nixCraft. 2023-07-23T15:43:02Z 2023-07-23T15:43:02Z Vivek Gite

Debian Linux 12.1 released with Security Updates

nixCraft - Thu, 03/28/2024 - 13:35
Debian Linux project announces the first update of the Debian project's stable distribution, Debian 12 (codename "bookworm") named Debian 12.1. This update mainly addresses security issues and significant problems. Security advisories have been published and are now available to download. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post Debian Linux 12.1 released with Security Updates appeared first on nixCraft. 2023-07-23T09:30:01Z 2023-07-23T09:30:01Z Vivek Gite

Setting up VSCode for Ansible Lightspeed AI in Ubuntu 22.04 desktop

nixCraft - Thu, 03/28/2024 - 13:35
Red Hat launched the Ansible Lightspeed Code Assistant Generative AI with IBM Watson Code Assistant in May 2023. This preview is now available to all Ansible users, allowing them to explore the technology, provide feedback to Red Hat, and further train the AI model. In this brief blog post, I will share my personal experience with installing and utilizing Ansible Lightspeed AI to create playbooks in VSCode using Ubuntu Linux 20.04 LTS desktop. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post Setting up VSCode for Ansible Lightspeed AI in Ubuntu 22.04 desktop appeared first on nixCraft. 2023-07-22T14:01:07Z 2023-07-22T14:01:07Z Vivek Gite

How To Set Up a Firewall with UFW on Debian 12

nixCraft - Thu, 03/28/2024 - 13:35
If you're using Debian 12, you can easily manage your firewall with the help of Uncomplicated Firewall (UFW). UFW interface simplifies firewall management and handles the complexities of packet filtering technologies like iptables and nftables. It's a great option for beginners who want to set up a firewall. In this tutorial, we'll guide you through installing UFW in Debian Linux 12, configuring it to allow SSH, HTTP, HTTPS, and other connections, and enabling it to block unauthorized traffic. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How To Set Up a Firewall with UFW on Debian 12 appeared first on nixCraft. 2023-07-19T16:18:55Z 2023-07-19T16:18:55Z Vivek Gite

How to open a TCP port 43 for whois command using iptables

nixCraft - Thu, 03/28/2024 - 13:35
{Updated} Do you need to open a TCP port 43 for outgoing whois command for communication using iptables command/ufw command/Firewalld? Fear not. You can add a rule to allow incoming or outgoing traffic on that specific port. Here's an example of how to do it.The post How to open a TCP port 43 for whois command using iptables appeared first on nixCraft. 2023-07-18T04:15:00Z 2023-07-18T04:15:00Z Vivek Gite

How to kill process or user by tty name in Linux

nixCraft - Thu, 03/28/2024 - 13:35
Sometimes we must kill a process or user account by tty name in Linux. It would be best if you used w command or who command to print users accessing tty and then run the pkill command against processes whose controlling terminal is listed by the -t option. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to kill process or user by tty name in Linux appeared first on nixCraft. 2023-07-14T05:37:35Z 2023-07-14T05:37:35Z Vivek Gite

How to install ZFS in Debian 12 “Bookworm”

nixCraft - Thu, 03/28/2024 - 13:35
Here is a quick tutorial on installing ZFS support in Debian Linux 12 "Bookworm" using "apt" or "apt-get" command-line option. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to install ZFS in Debian 12 “Bookworm” appeared first on nixCraft. 2023-07-01T22:16:19Z 2023-07-01T22:16:19Z Vivek Gite

How to view the open file limit for a Linux process

nixCraft - Thu, 03/28/2024 - 13:35
Do you need to view the open file limit for a Linux process? Try "limits" files in /proc/${PID} directory with its process ID (PID) or ulimit command or prlimit command to see the open file limit for a Linux process. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to view the open file limit for a Linux process appeared first on nixCraft. 2023-06-26T23:14:26Z 2023-06-26T23:14:26Z Vivek Gite

How to restart network service in Alpine Linux

nixCraft - Thu, 03/28/2024 - 13:35
You need to restart the network service in Alpine Linux using "/etc/init.d/networking restart" command to activate the network configuration defined in the /etc/network/interfaces config file. Do not run this command over an ssh-based session. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to restart network service in Alpine Linux appeared first on nixCraft. 2023-06-25T13:34:27Z 2023-06-25T13:34:27Z Vivek Gite

Alpine Linux fatal error: ncurses.h: No such file or directory fix

nixCraft - Thu, 03/28/2024 - 13:35
When I try to compile a program on Alpine Linux, it fails with the following error: app.c:1:10: fatal error: ncurses.h: No such file or directory 1 | #include | ^~~~~~~~~~~ compilation terminated. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post Alpine Linux fatal error: ncurses.h: No such file or directory fix appeared first on nixCraft. 2023-06-19T21:39:41Z 2023-06-19T21:39:41Z Vivek Gite

How to upgrade Debian 11 to Debian 12 bookworm using CLI

nixCraft - Thu, 03/28/2024 - 13:35
Debian Linux 12 "Bookworm" has been released. As of 23/July/2023, Debian 12.1 point was released too. The new version offers updated packages and five years of support. This page provides a step-by-step guide to updating Debian 11 Bullseye to Debian 12 Bookworm using command-line options, including upgrading all installed packages. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to upgrade Debian 11 to Debian 12 bookworm using CLI appeared first on nixCraft. 2023-06-10T14:47:16Z 2023-06-10T14:47:16Z Vivek Gite

How to upgrade OpenSUSE 15.4 to 15.5 using the CLI

nixCraft - Thu, 03/28/2024 - 13:35
The latest version of OpenSUSE Linux, version 15.5 "Leap," has been released. This version offers unparalleled stability due to its use of the SUSE Linux Enterprise (SLE) source and community developments. Hence, this makes it the best choice for a stable Linux experience for users, developers, and system administrators. This page explains how to upgrade from OpenSUSE 15.4 to 15.5 using the CLI. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to upgrade OpenSUSE 15.4 to 15.5 using the CLI appeared first on nixCraft. 2023-06-08T20:36:00Z 2023-06-08T20:36:00Z Vivek Gite

Bash see if an input number is an integer or not

nixCraft - Thu, 03/28/2024 - 13:35
While working on the bash shell script wrapper, I needed to ensure that I only passed an integer in the Bash script under Linux and Unix-like systems. Here is how to check if a number is an integer in Bash Linux or Unix script or at the command-line interface (CLI) Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post Bash see if an input number is an integer or not appeared first on nixCraft. 2023-05-04T06:33:48Z 2023-05-04T06:33:48Z Vivek Gite

How to upgrade FreeBSD 13.1 to 13.2 release

nixCraft - Thu, 03/28/2024 - 13:35
The FreeBSD Release Engineering Team is announcing the availability of FreeBSD version 13.2-RELEASE on 11/April/2023. It is the third release of the stable/13 branches. I updated my FreeBSD version 13.1 to 13.2 using the CLI over an ssh-based session. Here are my quick notes. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to upgrade FreeBSD 13.1 to 13.2 release appeared first on nixCraft. 2023-04-12T01:55:17Z 2023-04-12T01:55:17Z Vivek Gite

Linux cp command copy symbolic (soft) link tutorial

nixCraft - Thu, 03/28/2024 - 13:35
Do you want to copy a symbolic (soft) link instead of a file using the cp command under Linux? Try passing the -a (--archive) to copy and preserve all soft (symbolic) links. The cp command is a naturally used file copying under Linux and it comes with a few rules for copying symbolic links. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post Linux cp command copy symbolic (soft) link tutorial appeared first on nixCraft. 2023-04-10T19:04:32Z 2023-04-10T19:04:32Z Vivek Gite

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