detailed instructions how to use homebrew on Linux Ubuntu

[rubo77]

I installed homebrew on my linux Ubuntu 20.04 with the install script on brew.sh, then I tried to follow the README, but failed:

 brew update 
 brew: Befehl nicht gefunden.

I had to add an alias for the brew command:

alias brew=/home/linuxbrew/.linuxbrew/bin/brew

Then the command in the Readme failed:

brew uninstall --ignore-dependencies libtag

Error: No installed keg or cask with the name "libtag"

but the install worked fine:

brew install --HEAD libtag
...
brew install Moonbase59/tap/loudgain
...

until:

==> Downloading from https://codeload.github.com/Moonbase59/loudgain/tar.gz/v0.6.8
curl: (22) The requested URL returned error: 500 Internal Server Error        
Warning: Transient problem: HTTP error Will retry in 1 seconds. 3 retries 
Warning: left.
curl: (22) The requested URL returned error: 500 Internal Server Error        
Warning: Transient problem: HTTP error Will retry in 2 seconds. 2 retries 
Warning: left.
curl: (22) The requested URL returned error: 500 Internal Server Error        
Warning: Transient problem: HTTP error Will retry in 4 seconds. 1 retries 
Warning: left.
curl: (22) The requested URL returned error: 500 Internal Server Error        

Error: Failed to download resource "loudgain"
Download failed: https://github.com/Moonbase59/loudgain/archive/v0.6.8.tar.gz

[rubo77]

And it is not clear when do you need the "Dependencies"?

I tried this:

sudo apt install libavcodec libavformat libavutil libswresample libebur128  libtag
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libavcodec
E: Unable to locate package libavformat
E: Unable to locate package libavutil
E: Unable to locate package libswresample
E: Unable to locate package libebur128
E: Unable to locate package libtag

[rubo77]

The

Download failed: https://github.com/Moonbase59/loudgain/archive/v0.6.8.tar.gz This seems fixed, it was a temporary offlinage of large parts of GitHub

[rubo77]

And how do you use it after installation?

I tried

$ cd /myMp3MusicFolder
$ /home/linuxbrew/.linuxbrew/bin/rgbpm .
rgbpm requires "mp3gain2" but it's not installed. Aborting.
sudo apt install mp3gain2
E: Unable to locate package mp3gain2

[rubo77]

I fixed that with

cd /usr/local/bin
sudo ln -s mp3gain mp3gain2

now metaflac, and later vorbisgain is missing, fixed that with

apt install flac vorbisgain

Now it works, but it doesn't use loudgain now, it uses those three alternatives instead (see #31)

to use loudgain in rgbpm, you need to add the path to loudgain to the system:

PATH=$PATH:/home/linuxbrew/.linuxbrew/bin/

[Moonbase59]

Phew, what a can of worms! I made and tested the HomeBrew variant primarily for Mac users, and never assumed anyone would use brew on a Linux system. It’s quite easy to compile, or one could use the provided binary and simply put it in the user’s ~/bin or another place where the system can find it.

Sorry to say, but I currently don’t have the time to investigate brew on Linux. Thanks anyway for the info on your journey—this might help others.