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What is process "-:0"???

What is process "-:0"???

What is process "-:0"???

I was noodling around my Ubuntu test box trying to find something else in "ps" when I saw a process named "-:0"!!  I thought I'd been hacked.

I ordered ps with "ps ajfx" to get the process tree, and it turns out this thing is owned by X and xdm


    1  4461  4461  4461 ?           -1 Ss       0   0:00 /usr/bin/X11/xdm
 4461  4577  4577  4577 tty7      4577 Ss+      0   0:00  \_ /usr/bin/X vt7 -dpi 100 -nolisten tcp -auth /var/lib/xdm/authdir/authfiles/A:0-dkvU06
 4461  4580  4580  4580 ?           -1 Ss       0   0:00  \_ -:0

It's very difficult to google for this string with results.  I'm curious if anyone on this forum knows what this 'ps' entry is describing!

Thanks, D!

D.E.R. Management - IT Project Management Consulting

RE: What is process "-:0"???

It looks like it is your X server
:0 stands for the first display of your X server
if you have a second display it would be :1 etc...

it also looks logical that xdm is the parent as it starts X, which has a child for every display...


RE: What is process "-:0"???

Excellent, glad it was an expected answer!  Don't do too much GUI stuff on linux, so there's more to learn.  Thanks!

D.E.R. Management - IT Project Management Consulting

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