scripting with lame

linuxhippy · 03-20-2007, 02:50 PM

I have ~ 150 mp3 files that are not sequentially named that I would like lame to re-encode with lame. The lame command I figured out. I don't want to apply lame by hand 150 times. I figure the easiest way to do this is with a simple script that increments from 1 to 150 and executes 2 commands...a find command piped into the lame command. How could I set this up?

H_TeXMeX_H · 03-20-2007, 03:03 PM

are all the files in one folder or in many ? If in many, then yes find would work best.

Maybe there's someone else better at bash scripting here than me that can do it simpler and better.

But maybe something like:

Code:

#!/bin/sh

find /home/bob -name "*.mp3" | while read line
do
lame $line $line.new
done

exit 0

linuxhippy · 03-20-2007, 04:24 PM

That worked well...now how do I rename these files so that they have the ending _24.mp3 instead of .new?

Now they look like this: compress.mp3.new

I want: compress_24.mp3

EDIT: They are in separate directories.

jong357 · 03-20-2007, 04:32 PM

http://www.die.net/doc/linux/man/man1/rename.1.html

Use a for loop or find and pipe to xargs rename... Somethin'... I don't have a linux box handy so I'm not going to write you anything without being able to test it.... Sorry. Try a rename .mp3 to _24 and a rename new to mp3

The original script should have been written to take care of everything in one fell swoop for a trouble free re-encode.

linuxhippy · 03-20-2007, 04:35 PM

I mistyped-what I was thinking was how could lame name this file as compressed_24.mp3 instead of compressed.mp3.new?

EDIT:

Here's the second script for those who need it:

#!/bin/sh

find . -name "*.new" | while read line
do
rename .mp3.new _24.mp3 *.new
done

exit 0

H_TeXMeX_H · 03-20-2007, 05:01 PM

Well, technically, 'xargs' works better. (I just don't tend to use it as much because it doesn't always do what I tell it to, or I just don't understand it well).

For that second script to work on multiple directories it would have to be:

Code:

find /home/bob/downloads/test -name "*.mp3.new" | xargs rename .mp3.new _24.mp3

H_TeXMeX_H · 03-20-2007, 05:06 PM

Also, I'd like to know how that first script can be written with xargs. It takes too much brainpower for me to think of it right now