Even my scope node?
Cool!
Monday, April 12, 2010
Thursday, April 8, 2010
Link for X, HAL & udev
It seems we could thank HAL for all these years of great work and say goodbye in a short period of time (source below).
To be honest I still feel confused now and then about what (fill this blank) is doing for me. My understanding is:
linux kernel ─>─ udev ─>─HAL─>─ X server
│ │
└────────>───────┘
libudev
So I just try to find more about X/Hal/udev thing, and keep some links here. (Remember the best source of information is always the official web sites and the mailing list).
(Not) blaming HAL by Keith Packard (explains what X.org X server needs from HAL before 1.8)
Manage Linux Hardware with udev by Carla Schroder (tells a little history of udev and HAL, and how /dev, /sys works.)
Friday, April 2, 2010
How to delete last 10 lines in a file with script
I find this question asked very frequently... So here is the present of day(not for the April 1st, it's already 2nd in China now ;)
$ tac file.in | sed '1,10d' | tac > file.out
Obviously, you could replace 10 with any number you like, Cheers!
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