To find out the audio stream in the .mkv file using ffmpeg, open a terminal window and enter the following command: $ ffmpeg -i aaa.mkv <enter>
Category: Shell
How to find out network adapters on Linux
To find out the network adapter on the computer in Linux, open a terminal window and type the following command: $ inxi <enter>
How to quickly create a 150 GB file on Ubuntu
There are various methods to create a 150 GB file on Linux, but the fastest way to do so is to use fallocate. Open a terminal window and enter the command below: $ fallocate 150G filename <enter> The above command creates a 150 gb file named filename.
System scaling in Linux on 1920×1080 display (HiDPI)
Note system scaling works out of box with Cinnamon desktop. Open a terminal window and install it with: $ sudo apt-get install cinnamon-desktop-environment <enter> To do system scaling in the Gnome Desktop Environment, install the gnome-tweak tool. To do so, open a terminal window and enter the command as below: $ sudo apt-get install gnome-tweak-tool … Continue reading System scaling in Linux on 1920×1080 display (HiDPI)
How to find out time taken in Linux by processes when starting the computer
To identify which system processes take how much time when booting your Linux system, open a terminal window, at type the following command: $ sudo systemd-analyze blame <enter>
How to debloat, remove crapware from Xiaomi Redmi Note 5 Pro smartphone
Never look a gift horse in the mouth.. If you are one of those who is a technology connoisseur and love to compare specifications of smart phones before making a purchase decision, you need to be aware that the Xiaomi Redmi Note 5 Pro with 6 GB Internal RAM, best display and camera is a … Continue reading How to debloat, remove crapware from Xiaomi Redmi Note 5 Pro smartphone
How to restart wifi after Suspend/Resume Ubuntu Linux
Ubuntu Linux installed on a Lenovo laptop randomly disables wireless networks altogether. Subsequently, it does not show any wireless networks too in Network Manager. To resolve this issue, did the following: $ sudo lshw -class network <enter> Below is the result. Notice the logical name wlp2s0b1 and the driver brcmsmac *-network description: Wireless interface product: … Continue reading How to restart wifi after Suspend/Resume Ubuntu Linux
Install XFCE desktop and remove Gnome desktop on Ubuntu 18.10
To install Xubuntu after you have install Ubuntu 18.10 with the default Gnome desktop, make sure to take a backup of your data and then open a terminal window and run the following commands: $ sudo apt-get install xubuntu-desktop <enter>$ sudo apt-get purge whoopsie orage gigolo catfish snap* parole* <enter>$ sudo apt-get purge ubuntu-gnome-desktop <enter>$ … Continue reading Install XFCE desktop and remove Gnome desktop on Ubuntu 18.10
Speed up application startup time in Ubuntu
If you find your Linux computer is slow in starting up applications, you can install the preload package. It makes a small, discernible difference when launching applications. To install, open a terminal window and run the following command: $ sudo apt-get install preload <enter>
Remove a broken package on Ubuntu
To remove a broken package, open a terminal window and enter following command: $ sudo dpkg --remove package-name <enter> where package-name is the broken package to be removed.
