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Convert Mp4 to Mp3 in Linux Terminal

First things first, install the required software packages. sudo apt-get install ffmpeg && sudo apt-get install libavcodec-extra-53 Then use it. For FFmpeg with Constant Bitrate Encoding (CBR) ffmpeg -i video.mp4 -vn \ -acodec libmp3lame -ac 2 -ab 160k -ar 48000 \ audio.mp3 or if you want to use Variable Bitrate Encoding (VBR) ffmpeg -i video.mp4 -vn \ -acodec libmp3lame -ac 2 -qscale:a 4 -ar 48000 \ audio.

Fix Login Loop Ubuntu Linux

If you stuck in the login screen and can’t load the Ubuntu desktop, follow those steps. when you on the login screen, press ctrl + shift + alt + f1. A black screen appeared? No? Just the login page? So try ctrl + shift + alt + f2. Still the login screen? try ctrl + shift + alt + f3. If the login screen still showing? Try to use another external keyboard.

How to Use Systemd to Keep Programs Running ?

Systemd manages these services in unit files like this. [Unit] Description=Some Really Important Service [Service] Type=simple WorkingDirectory=/root ExecStart=/root/my_program.sh [Install] WantedBy=multi-user.target The program that will start is. #!/usr/bin/env bash while true; do echo 'service is working' sleep 3 done If you don’t want to use this line #!/usr/bin/env bash, then you should make sure to specify what is the program is dedicated to execute the script like this.

Things To Do After Installing elementary OS Hera (5.1)

Enable PPA sudo apt update sudo apt install software-properties-common Install apt-fast sudo add-apt-repository -y ppa:apt-fast/stable sudo apt -y install apt-fast echo "alias apt='apt-fast'" >> ~/.bashrc source ~/.bashrc Update OS apt update && apt upgrade Install git apt install git Uninstall Apps If you do not like epiphany browser - like me, just run this command. apt purge epiphany-browser epiphany-browser-data If you don’t use the pantheon mail app - like me, just run this command to uninstall it.

How to Install Gnome Shell Extensions from ZIP File using command line

First check your gnome version: $ gnome-shell --version GNOME shell 3.36.4 Then go to location where your downloaded ZIP file, for me its Downloads directory. cd ~/Downloads/ Get the extension UUID from metadata.json by this command. $ unzip -c dash-to-dock-micxgx.gmail.com.v68.shell-extension.zip metadata.json | grep uuid | cut -d \" -f4 dash-to-dock@micxgx.gmail.com Or simply open metadata.json file and copy the UUID value. For me it is dash-to-dock@micxgx.gmail.com. Create destination directory for the gnome extension.