'ls' command able to list directory of audio files bitrates too?

[AlexOnVinyl]

Is it possible for the 'ls' command to list a directory of audio files and display their bitrates as well?

so far here's what's worked for me:


ls -C -R -s >file-contents.nfo

Is there a way I can make it display the bitrates?

[Toz]

I don't believe ls can do that, but if you use the file command, you can get that information. Something like this:

for f in *.mp3; do echo `ls -C -R -s "$f"` \(`file "$f" | cut -d',' -f5` \); done

Probably best to assign it to an alias:

alias bls='for f in *.mp3; do echo `ls -C -R -s "$f"` \(`file "$f" | cut -d',' -f5` \); done'

[AlexOnVinyl]

I don't believe ls can do that, but if you use the file command, you can get that information. Something like this:

for f in *.mp3; do echo `ls -C -R -s "$f"` \(`file "$f" | cut -d',' -f5` \); done

Probably best to assign it to an alias:

alias bls='for f in *.mp3; do echo `ls -C -R -s "$f"` \(`file "$f" | cut -d',' -f5` \); done'


can you explain exactly what I'm putting in? I'm a little confused.. :frown:

[Toz]

Sure.


for f in *.mp3;
...for every mp3 file in the current directory...


do
...do the following...


echo `ls -C -R -s "$f"`
...this is your existing code to list the files by columns (-C), recursively (-R), and print its size in blocks (-s)...


\(`file "$f" | cut -d',' -f5` \);
...and append to each entry the bitrate as obtained using the file command (the bitrate is in the 5th comma-separated column)...


done
...done...

The $f is a placeholder for every mp3 file in the directory - it is replaced by the name of each file it finds as it works through the directory.

[AlexOnVinyl]

Sure.


for f in *.mp3;
...for every mp3 file in the current directory...


do
...do the following...


echo `ls -C -R -s "$f"`
...this is your existing code to list the files by columns (-C), recursively (-R), and print its size in blocks (-s)...


\(`file "$f" | cut -d',' -f5` \);
...and append to each entry the bitrate as obtained using the file command (the bitrate is in the 5th comma-separated column)...


done
...done...

The $f is a placeholder for every mp3 file in the directory - it is replaced by the name of each file it finds as it works through the directory.

So basically - everything that you have wrapped in the CODE boxes is what I put in?

[nothingspecial]

You could use sox


sudo apt-get install sox libsox-fmt-all

Then when you are in the directory with the music type


soxi *

[Toz]

So basically - everything that you have wrapped in the CODE boxes is what I put in?

Yes, the first box if you want to just type it into the terminal. You'll find this tedious. The better option is to add the contents of the second box to your ~/.bashrc file. Close and open a new terminal and then just type in bls when in a directory to run the longer command.

[AlexOnVinyl]

You could use sox


sudo apt-get install sox libsox-fmt-all

Then when you are in the directory with the music type


soxi *


Yes, the first box if you want to just type it into the terminal. You'll find this tedious. The better option is to add the contents of the second box to your ~/.bashrc file. Close and open a new terminal and then just type in bls when in a directory to run the longer command.

Thanks guys I'll report back with my outcomes

[AlexOnVinyl]

You could use sox


sudo apt-get install sox libsox-fmt-all

Then when you are in the directory with the music type


soxi *

I installed sox - then made this script:


#!/bin/bash

soxi * >file-info.nfo && soxi * >file-info.log

Is there any way I can set it to go through each subfolder and subdirectory and list the files - that way if I have a lot of folders with music files in them I want indexed, it will just go through automatically?

[enkay009]

I installed sox - then made this script:


#!/bin/bash

soxi * >file-info.nfo && soxi * >file-info.log

Is there any way I can set it to go through each subfolder and subdirectory and list the files - that way if I have a lot of folders with music files in them I want indexed, it will just go through automatically?

You could run find and specify an execute option.


find /path/to/my/mp3/directory -type f -exec soxi {} \; > file-info.log

This will recursively return all files ( -type f ) under your path ( /path/to/my/mp3/directory ) and run a command on them ( -exec soxi {} \; ).

You can be a even be more precise and specify a file pattern.


find /path/to/my/mp3/directory -type f -name '*.mp3' -exec soxi {} \;

[nothingspecial]

Just to be pedantic :p

With find, in this case, you are much better to specify -name before -type f

find finds everything then checks your specifications one by one left to right so if you specify -type f first it will find every single file and then check if they are called *.mp3

If you put -name first it will only check if anything called *.mp3 is a file before continuing.

Makes no difference if you don't have a lot of music, but if your collection is anything like mine, with 10s of thousands of flac files and very few mp3s, it would.

[AlexOnVinyl]

Just to be pedantic :p

With find, in this case, you are much better to specify -name before -type f

find finds everything then checks your specifications one by one left to right so if you specify -type f first it will find every single file and then check if they are called *.mp3

If you put -name first it will only check if anything called *.mp3 is a file before continuing.

Makes no difference if you don't have a lot of music, but if your collection is anything like mine, with 10s of thousands of flac files and very few mp3s, it would.

hahah I'll look into it.


You could run find and specify an execute option.


find /path/to/my/mp3/directory -type f -exec soxi {} \; > file-info.log

This will recursively return all files ( -type f ) under your path ( /path/to/my/mp3/directory ) and run a command on them ( -exec soxi {} \; ).

You can be a even be more precise and specify a file pattern.


find /path/to/my/mp3/directory -type f -name '*.mp3' -exec soxi {} \;

Could you go into detail what the
{} \; stand for individually please? as I said I'm just learning to script with Bash. And just started ubuntu in August :) quite satisfied with Linux over any other OS.

[nothingspecial]

Could you go into detail what the
{} \; stand for individually please? as I said I'm just learning to script with Bash. And just started ubuntu in August :) quite satisfied with Linux over any other OS.


{} means what find has found

\; ends the find command

[AlexOnVinyl]

{} means what find has found

\; ends the find command

how can I take this:
find /path/to/my/mp3/directory -type f -name '*.mp3' -exec soxi {} \;

and change the
/path/to/my/mp3/directory to work with whatever I want it to be when I run the script - as in to work with Nautilus. As like if I wanted to right click on the folder and have it run on that specific folder?

[nothingspecial]

Well I've never had a look at nautilus scripts so I am unsure how they work but ./ expands to the current working directory so


find ./ -type f -name '*.mp3' -exec soxi {} \;

[AlexOnVinyl]

Well I've never had a look at nautilus scripts so I am unsure how they work but ./ expands to the current working directory so


find ./ -type f -name '*.mp3' -exec soxi {} \;


Lol we could both be learning something here. And no, not Nautilus - I mean Im making a bash script to put into the ~/.gnome2/nautilus-scripts/ folder to use it as a script - like a 1 click terminal command