Script for editing MP3s tag

popper09 · 04-20-2014, 02:48 PM

Hi guys
I'm searching for a script in linux bash for editing MP3s tag.
More precisely I want to capitalize any word in the tags. For exemple, if there's an Artist tag "john petrucci" I want it to be "John Petrucci".
Could you help me?
Thanks

TB0ne · 04-20-2014, 02:55 PM

Quote:

Originally Posted by popper09

Hi guys
I'm searching for a script in linux bash for editing MP3s tag.
More precisely I want to capitalize any word in the tags. For exemple, if there's an Artist tag "john petrucci" I want it to be "John Petrucci".
Could you help me?
Thanks

There are several perl modules for manipulating MP3 tags...you don't say what language you're wanting to write this in, but perl would be easy. Why don't you post what you've written/tried so far, and tell us where you're stuck, and we'll be happy to help.

popper09 · 04-20-2014, 03:13 PM

I'd want it in linux bash.
I've tried to write something in python (the only language I know) but I've got some problems. Also, I realized I need it on linux bash because there is not supposed to be a python interpreter on the machine I'll have to run the script.

TB0ne · 04-20-2014, 03:41 PM

Quote:

Originally Posted by popper09

I'd want it in linux bash.
I've tried to write something in python (the only language I know) but I've got some problems. Also, I realized I need it on linux bash because there is not supposed to be a python interpreter on the machine I'll have to run the script.

What machine is that, running what version/distro of Linux? And there are lots of sample scripts you can find through Google....post what you've written/tried so far, and we can help. But we're not going to write your scripts for you.

jlinkels · 04-20-2014, 06:47 PM

I would recommend to use a command line tag editor and call it from bash. I have little experience recently with tag editing, but it seems id3v2 is an option. Some grep, sed and awk and maybe tr should complete the script.

jlinkels

Dafydd · 04-21-2014, 12:47 AM

See if this gets you started in the right direction..

Code:

artist=$1;
album=$2;
genre=$3;

for filename in *mp3;  ##list all mp3 names in directory

  do
  if [ -f "$filename" ]
    then
	song_name=${filename%.mp3};
		 mp3info -t "$song_name" -a "$artist" -l "$album" -g "$genre" "$filename";
    else
	:
    fi
    done
exit

colucix · 04-21-2014, 02:09 AM

In bash you can capitalize letters using the ^ and ^^ parameter expansion. Example:

Code:

$ name=john
$ echo ${name^}
John

To capitalize every first letter in a complete name, you have to assign it to an array, example:

Code:

$ name=( $(echo john belushi) )
$ echo ${name[@]^}
John Belushi

To be sure the names are capitalized as you desire, upon reading them from the original tag you may want to change all the letters to lowercase at first. In this case do

Code:

$ echo ${name[@],,}
john belushi

Some reference:
http://www.gnu.org/software/bash/man...eter-Expansion
http://www.gnu.org/software/bash/man...ef.html#Arrays

popper09 · 04-22-2014, 01:29 PM