Thunar file manager does not show archiving options in the menu upon right click

Thunar File Manager on Xubuntu did not display the options of Extract or Extract Here… when right clicking on an archive file.

This was because the thunar-archive-plugin is not installed. To get the option to extract archive files, open a terminal window and install the thunar-archive-plugin as below:

$ sudo apt-get install . . . → Read More: Thunar file manager does not show archiving options in the menu upon right click

How to install Java 8 SE and run Income Tax India ITR 2019 Java utilities in Linux

Those who want to run the ITR Java utilities released by the Income Tax Department India on Linux, must note that Java 8 SE is no more supported by Oracle. It is outdated and has security bugs which have been fixed in future versions. Future versions do not run the ITR utilities.

Follow below . . . → Read More: How to install Java 8 SE and run Income Tax India ITR 2019 Java utilities in Linux

How to speed up starting of Ubuntu 19.04 on the Dell Inspiron 5580

Open a terminal windows in linux and enter the following commands:

$ sudo apt-get purge snapd* <enter>

Above command removes snapd.

$ sudo systemd-analyze blame <enter>

Also, found the plymouth-quit-wait.service takes very long time in boot. To eliminate the problem, enter following commands:

$ sudo vi /etc/default/grub . . . → Read More: How to speed up starting of Ubuntu 19.04 on the Dell Inspiron 5580

How to extract Opus audio from MKV file

To extract the opus audio from mkv file, open a terminal window and enter the following command:

$ ffmpeg -i Attention.mkv -acodec copy -vn audio.opus <enter>

. . . → Read More: How to extract Opus audio from MKV file

How to enable Cut, Copy and Paste menu options in Thunar after installing xubuntu desktop on Ubuntu 18.10

Upon installing the XFCE desktop, everything works fine. However, Cut, Copy and Paste menu options are greyed out in Thunar.

To enable this, select Settings -> Session and Startup -> Advanced and uncheck the box where it says Launch GNOME services on startup.

Reboot the computer and you will be able to cut, copy . . . → Read More: How to enable Cut, Copy and Paste menu options in Thunar after installing xubuntu desktop on Ubuntu 18.10

Wireless Adapter not detected in Linux Mint 19.1 on Dell Inspiron 5580

On a Dell Inspiron 5580, the wireless adapter is of Intel. The same is not detected when installing Linux Mint 19.1 the first time. This is because of the kernel not being updated.

Once Linux Mint 19.1 is installed, the later kernel 4.15.0-52 installed upon update, makes the wireless adapter work.

. . . → Read More: Wireless Adapter not detected in Linux Mint 19.1 on Dell Inspiron 5580

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:

. . . → Read More: 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 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: . . . → Read More: 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 . . . → Read More: Install XFCE desktop and remove Gnome desktop on Ubuntu 18.10

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