Text Based User Interface to stdout

Question

I'm working on a headless device to play music, and I'm using Sox's play command to play the file.

I'm after a way to pipe the output formatted like this:

$play File.wav

File.wav:

File Size: 1.25M
Bit Rate: 64.0k Encoding: Unsigned PCM Channels: 1 @ 8-bit Samplerate: 8000Hz Replaygain: off Duration: 00:02:36.87 In:42.4% 00:01:06.56

[00:01:30.31] Out:532k [ -===|===- ] Clip:0

To be readable in a text file so it can be parsed by PHP and ouputted to the user.

I've tried the standard things like:

$play File.wav >> output.txt

which results in a file being created but an empty one, I don't need it to be realtime, just every few seconds, or even once per run just to check it's going ok.

Any ideas?

Answer 1

Try the following (it would appear that sox outputs on STDERR):

play File.wav >> output.txt 2>&1

Whether it's going to be easy to parse is a different story ... :)

Namely the

[00:01:30.31] Out:532k [ -===|===- ] Clip:0

bit gets broken up over individual lines with your redirect.