[SOLVED] A little Console Magic, Please

business_kid · 12-21-2012, 09:53 AM

Using runlevel 3 and startx, I want to grab the 'Errors' output without having to weed through the self congratulatory debug output of a radeon card or the angst X goes through before picking a video mode. Just errors.

If we could put test in one file, and errors in another that would be better, but atm I just need the errors.

tronayne · 12-21-2012, 01:16 PM

You might be able to redirect the output (maybe). If you do

Code:

command >/tmp/file.log 2>/tmp/otherfile.log

That way the standard output goes into /tmp/file.log and the standard error goes into /tmp/othefile.log if I remember right (remember that it's sh that startx runs, not BASH). You might need to use ">>" instead of ">" to append.

Don't know if startx will do that, though; give it shot and see what happens?

business_kid · 12-21-2012, 02:46 PM

Yep, that does it for the errors anyhow. Thanks.

Shadow_7 · 12-21-2012, 04:59 PM

Assuming you always get the same output, once with 2> (stderr only) and once with 2>&1 (both stderr and stdout) and once with just > (stdout only).

2 == stderr
1 == stdout
0 == stdin

Or something like that. I tend to use "command 2>&1 | tee -a <file>" for most things that I need a log for. This lets you capture both stderr and stdout and lets you see those on screen as they occur.