One of the most common Linux operations is locating a particular file by its name. In Linux, the ‘locate’ command serves the purpose as it is used to search a file or a directory by name. It is similar to the ‘find’ command, which locates the file in the filesystem. But here, it searches the… Read More »
This article explores the ‘blkid’ command, whose purpose is retrieving information about block devices, LABEL, UUID, file system type, etc. The useful command can help us to identify or troubleshoot issues related to block devices and their attributes. Installation To use ‘blkid’ command, your Linux system needs to have the ‘util-linux’ package installed. blkid: command… Read More »
If you have recently built and setup a video editing machine and want to test its performance by working with some 8K footage, then you can download some 8k videos from youtube. I was looking for some sample 8k video clips to benchmark and test my video editing setup but could not find anything elsewhere…. Read More »
As soon as we turn on our systems, it’s very crucial for us to understand the processes that get triggered. Hence, it is really important for anyone to go through the concepts of booting to understand how an operating system behaves and also to resolve any booting error. Since we’re talking about Linux systems here,… Read More »
Some time ago I had purchased a Seagate One Touch 5TB hard disk, and used it mostly for redundant backups and virtual machines. Suddenly a week ago I noticed that it has stopped working and plugging it into the usb port brought up nothing in the file manager. I tried plugging it into different usb… Read More »
lsof, which means “list open files”, is a command-line utility that shows information on currently opened files and the processes they are associated with in Linux and other Unix-based operating systems. A file in this context could be your regular file, a directory, a block-special file, a library, a character-special file, an executing text reference,… Read More »
Introduction This article will explore the ‘lsblk’ command to understand the structure of storage devices through practical examples with filtering options. This will help you manage, monitor, analyze, and troubleshoot block devices on a Linux system. Block devices are storage devices that store and retrieve data in fixed-size blocks. Installation To install ‘lsblk’, you can… Read More »
Linux-based operating systems adhere to the Linux Filesystem Hierarchy Standard (FHS), a well-defined directory structure maintained by the Linux Foundation. This standardization brings several benefits, including ease of use for both users and software developers by providing a consistent location for installed binaries, system files, and system information. While transitioning from Windows to Linux, users… Read More »
HDR vs SDR HDR (High Dynamic Range) is the newer and more advanced version of display technology that shows more colorful and brighter pictures on displays that support it. It is much superior to its predecessor SDR. Videos in HDR format use 10-bits for storing color information and use different color transfer functions compared to… Read More »
Intel Quick Sync Video is the technology used in intel integrated gpu’s to enable hardware accelerated encoding and decoding of videos. It supports multiple codecs like H.264(avc), H.265 (hevc), MPEG-2 etc. In this quick tutorial we take a quick look at how to use this technology inside ffmpeg to encode and decode videos. Install non-free… Read More »
Iotop is an open-source and free utility Linux command used to display the statistics of disk input/output by processor/threads and print the summary which gets refreshed every second. It is quite similar to the top command, except that iotop monitors just disk i/o and not other metrics. This command is particularly useful for system administrators… Read More »
sar (System Activity Reporter) is a command line tool used to collect, report, and analyze system activity information in Linux and other Unix-based operating systems. In other words, it gathers information and provides insights on system activity, such as CPU utilization, memory usage, I/O operations, network activity, disk usage, power management, and much more, which… Read More »
In another article, we learned the basic docker commands like how to launch a container and connect to it via terminal and run commands. We saw that a basic docker image like “ubuntu” does not have commands like ifconfig, ip, and ping installed by default and we could install them with the apt command. But… Read More »
Ram Timings are an important part of the ram specifications. They look like a series of number like this: 22-22-22-52. These timing numbers indicate how fast or slow the ram would perform in conjunction with the cpu. Higher timings indicate that the ram takes more time to internal operations, and is slower. Lower timings mean… Read More »
RAM Speed (read and write) is crucial to the overall performance of the system. Having a fast cpu but slow ram can slow down a system in demanding work-loads like video editing and gaming. Ram size and speed are different factors. Ram size determines how much data can be stored in the system, whereas the… Read More »
The name of the nslookup command is an abbreviated version of “name server lookup”. nslookup sends a request to the local domain name system (DNS) server asking for information from its DNS records. In response, the DNS server returns the IP address or relevant domain information for a specific website or server. However, it can… Read More »
Multipass is a lightweight, command-line virtualization tool developed by Canonical that allows you to create and manage Ubuntu virtual machines (VM) on your local machine. It lets you run multiple isolated instances of Ubuntu for development and testing. Multipass is cross-platform, which means you can run it on macOS, Windows, and Linux. However, on Linux,… Read More »
Docker is a popular “containerization” platform that allows developers to run applications inside isolated environments called containers. Containers are similar to virtual machines, however they do not run an entire operating system (like virtualbox, qemu). In principle containers are somewhat similar to the classic that could be used to setup a completely isolated environment within… Read More »
If you check the window outerwidth on a maximised browser window, you should get the resolution width of your screen or display in general. For example when I run the following code (in console) in Firefox I get 1920px which is my resolution width: window.outerWidth 1920 On Google Chrome however, the reported dimension is different… Read More »
OpenCL is a general purpose computing api that is designed to be hardware accelerated with a supporting gpu and driver. On Linux this api is supported by all major gpu vendors including nvidia, intel and amd. In this quick tutorial we take a look at how to check if your system support opencl api (with… Read More »