This interesting bash function will get the git branch of the current working directory and then print it in the shell prompt. This could be very useful for a programmer. git_branch() { git branch 2> /dev/null | sed -e ‘/^[^*]/d’ -e ‘s/* \(.*\)/(\1)/’ } PS1=’┌──[\u@\h]─[\w]\n└──╼ $(git_branch) ╼ \$ ‘git_branch() { git branch 2> /dev/null … Read more
Saving music from Youtube is fun. I am going to show how to save in good quality using youtube-dl by itself. This command will do it in one go. youtube-dl -f 140 https://www.youtube.com/watch?v=eb-2ljQDYFU –embed-thumbnail –extract-audio –audio-format mp3youtube-dl -f 140 https://www.youtube.com/watch?v=eb-2ljQDYFU –embed-thumbnail –extract-audio –audio-format mp3 This is the command in action. This gets the music in … Read more
The Linux command line is very useful and it can even generate you a nice wallpaper image using just the shell and ImageMagick. The example below will generate a 3440×1440 pixels wallpaper image using just the random data from /dev/urandom. ┌─[jason@jason-desktop]─[~/Documents] └──╼ $mx=320;my=256;head -c "$((3*mx*my))" /dev/urandom | convert -depth 8 -size "${mx}x${my}" -resize 3440×1440\! -channel … Read more
I had a folder full of music files from a Stalker mod. But I needed to merge them together into stereo files as they were separate left and right files. Ending in _l.ogg and _r.ogg. But I managed to get this working wth help from Stackoverflow. for f in *_l.ogg; do sox -M "$f" "${f/%_l.ogg/_r.ogg}" … Read more
The updates for youtube-dl do not work anymore on Ubuntu, but it can be updated manually. Download the script here: https://youtube-dl.org/downloads/latest/youtube-dl. Then copy the script over the top of the existing one in /usr/bin and then make sure it has the executable flags 755. This is very easy. Download it very easily. ┌─[jason@jason-desktop]─[~/Downloads] └──╼ $wget … Read more
The RIAA is arguing that youtube-dl is illegal because it’s a tool to download copyrighted content. They filed a complaint to Github which took several of its forks down immediately. This could mean it will disappear from the Internet. Time to make a local repo and share it on other channels. They are worried about … Read more
To read a file from the Internet using wget and print it in the terminal, use this command. ┌─[jason@jason-desktop]─[~/Documents] └──╼ $wget -qO – https://i.mjh.nz/au/Brisbane/raw-tv.m3u8┌─[jason@jason-desktop]─[~/Documents] └──╼ $wget -qO – https://i.mjh.nz/au/Brisbane/raw-tv.m3u8 View an image from the Internet with wget and the ImageMagik display utility. ┌─[jason@jason-desktop]─[~/Documents] └──╼ $wget -qO – https://i.4cdn.org/g/1603231784644.png | display┌─[jason@jason-desktop]─[~/Documents] └──╼ $wget -qO – https://i.4cdn.org/g/1603231784644.png … Read more
Creating a tiled image on Linux with the command line is very easy to do. This command will take the pyramid.bmp file and tile it as a 3440×1440 widescreen image. ┌─[jason@jason-desktop]─[~/Pictures/Windows/bitmaps] └──╼ $convert -size 3440×1440 tile:pyramid.bmp Tiles.jpg┌─[jason@jason-desktop]─[~/Pictures/Windows/bitmaps] └──╼ $convert -size 3440×1440 tile:pyramid.bmp Tiles.jpg This example will create a massive 7680×2160 pixel image. ┌─[jason@jason-desktop]─[~/Pictures/Windows/bitmaps] └──╼ $convert … Read more
Saving a Youtube video as audio and not video is very easy. This command below will save Youtube audio as an MP3 file. You need youtube-dl as well. Then select a Youtube video and use this one-liner to download it as an MP3 audio file. jason@jason-Lenovo-H50-55:~/Videos$ youtube-dl -f 140 https://www.youtube.com/watch?v=neEXAoYfcRo -o – | ffmpeg -hide_banner … Read more
There is a nice alternative to Windirstat for Linux available. The Graphical Disk Map utility for Linux allows a user to open a folder in the program and then see which files are taking up the most space. This is a great way to clean up your hard drive and save disk space. Install it … Read more
The Ubuntu Linux distribution is very good for working with multimedia files. I insert a flash drive with an AVCHD file on it and it is automatically opened as a folder. This makes it very easy to extract the video files inside. This is even more convenient than on Mac OSX. There are ways to … Read more
Downloading a thumbnail of a Youtube video on Linux is very easy. This can be done using the youtube-dl script. Use this youtube-dl command to list all thumbnails for this video. ┌─[jason@jason-desktop]─[~/Pictures] └──╼ $youtube-dl https://www.youtube.com/watch?v=0ttKUEI3rtM –list-thumbnails [youtube] 0ttKUEI3rtM: Downloading webpage [info] Thumbnails for 0ttKUEI3rtM: ID width height URL 0 168 94 https://i.ytimg.com/vi/0ttKUEI3rtM/hqdefault.jpg?sqp=-oaymwEYCKgBEF5IVfKriqkDCwgBFQAAiEIYAXAB&rs=AOn4CLCtzil9D33ps4rh6SWgoECSwl7PZg 1 196 110 … Read more
This program allows the user to search an array and then return any matches. Give the program two letters and it will search the array and try to find the matches. compare.cpp1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 … Read more
The ClamAV virus scanner is very useful for scanning files for malicious code. This is good if you download files from the Internet that are going to be used on a Windows computer. This is very easy to install. ┌─[jason@jason-desktop]─[~/Downloads/Dark Path/S.T.A.L.K.E.R. – Dark Path] └──╼ $sudo apt install clamav┌─[jason@jason-desktop]─[~/Downloads/Dark Path/S.T.A.L.K.E.R. – Dark Path] └──╼ $sudo … Read more
It is very easy with ffmpeg to remove a logo from a video. This is done with the delogo filter. Below is an example. Here I am using the delogo filter. This is the x and y locations of the logo and the width and height: “delogo=x=483:y=25:w=298:h=77”. ┌─[jason@jason-desktop]─[~/Videos] └──╼ $ffmpeg -i input.mp4 -vf "delogo=x=483:y=25:w=298:h=77" -c:a … Read more
To get a nice warm screen color instead of a glaring white screen at night, use this very useful program. Redshift will remove blue light from your computer screen and then this will help with sleep. ┌─[jason@jason-desktop]─[/] └──╼ $sudo apt install redshift-gtk┌─[jason@jason-desktop]─[/] └──╼ $sudo apt install redshift-gtk Start Redshift from the Applications-Accessories menu and then … Read more
Creating a webcam stream of your desktop, instead of an actual webcam is very easy on Linux. The v412loopback package provides a kernel module that will emulate a webcam, using any video input you wish to give it. Install it like this. ┌──[[email protected]]─[~] └──╼ ╼ $ sudo apt install v4l2loopback-dkms┌──[[email protected]]─[~] └──╼ ╼ $ sudo apt … Read more
Downloading a video blob from a website can be very frustrating. This is easier with the Download Helper extension for Firefox. This can make this task very easy. When you are on a website that hasthe video you want, click the Download Helper icon and find the format and resolution you wish to download. Then … Read more
This is how to get information about recently installed packages on Ubuntu. This is looking at the lowlatency package I just installed. 4.4 Thu Jun 04 jason@Yog-Sothoth 0: $ grep "lowlatency" /var/log/apt/history.log | sed "s/ /\n/gi"; Commandline: apt install linux-image-5.3.0-24-lowlatency Install: linux-image-5.3.0-24-lowlatency:amd64 (5.3.0-24.26~18.04.2), linux-modules-5.3.0-24-lowlatency:amd64 (5.3.0-24.26~18.04.2, automatic) Commandline: apt-get install –reinstall linux-image-5.3.0-24-lowlatency Reinstall: linux-image-5.3.0-24-lowlatency:amd64 (5.3.0-24.26~18.04.2) Commandline: … Read more
This command will change the default port for the SSH server on your Linux machine. jason@jason-desktop:~$ perl -pi -e ‘s/^#?Port 22$/Port 443/’ /etc/ssh/sshd_configjason@jason-desktop:~$ perl -pi -e ‘s/^#?Port 22$/Port 443/’ /etc/ssh/sshd_config Then run this command to restart the SSH server. jason@jason-desktop:~$ sudo service ssh restartjason@jason-desktop:~$ sudo service ssh restart This will work very well. This is … Read more