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import pprint
import re

from collections import defaultdict
from functools import partial
from importlib_metadata import metadata


__semicolon_split = partial(str.split, sep=r';', maxsplit=1)

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typealias id<T> = (T) -> T
typealias rec_bin<T> = T.(T) -> T

inline infix fun<T> T.`|`(fnc: id<T>) = this.let(fnc)
inline infix fun<T> id<T>.`|`(crossinline fnc: id<T>): id<T> = { this(it) `|` fnc }

fun<T> partial(op: rec_bin<T>, operand: T): id<T> = { it.op(operand) }

val addCinque = partial(Int::plus, 5)
val negative = partial(Int::times, -1)

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get_pointer_id.sh

The scripts returns (echos) xinput id of a pointing device by its name, and if the name is not unique also by its USB interface number.
It is suggested to set the script mode to grant execute permissions.

Arguments

Name	Position	Mandatory	Default value	Description
DEVICE_NAME	1	yes		The device name as reported by xinput list.
DEVICE_NUM	2	optional	0	The device USB interface number: udev's bInterfaceNumber / ID_USB_INTERFACE_NUM value. If the value is one character (digit) only, then it is left padded with 0.
flags: -f or --force	last	optional	absent	If the flag is present, always compare DEVICE_NUM value, even if there is only one device with DEVICE_NAME.

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In Python, capturing process output with contextlib.redirect_stdout / contextlib.redirect_stderr, or manual redirection of sys.stdout and sys.stderr works only when sys file objects are actually being used by the producer to write to standard output or error. If data streams are referred directly, for instance by an underlying C/C++ library invoked by the interpreter, hence eliding sys file objects, these methods are inadequate.
Fortunately, the os module lays on a number of file descriptor operations that can be availed to capture the actual standard streams

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In this article, I will share some of my experience on installing NVIDIA driver and CUDA on Linux OS. Here I mainly use Ubuntu as example. Comments for CentOS/Fedora are also provided as much as I can.

Table of Contents

• Install NVIDIA Graphics Driver via apt-get
• Install NVIDIA Graphics Driver via runfile
  • Remove Previous Installations (Important)
  • Download the Driver
  • Install Dependencies
  • Creat Blacklist for Nouveau Driver

• Stop lightdm/gdm/kdm

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With the help of gdbus, the dropdown arrow visibility can also be toggle from terminal:

• To hide:
  • gdbus call --session --dest org.gnome.Shell --object-path /org/gnome/Shell --method org.gnome.Shell.Eval 'Main.panel.statusArea.aggregateMenu._arrow.visible = false;'
    or
  • gdbus call --session --dest org.gnome.Shell --object-path /org/gnome/Shell --method org.gnome.Shell.Eval 'Main.panel.statusArea.aggregateMenu._arrow.hide();'
• To show:
  • gdbus call --session --dest org.gnome.Shell --object-path /org/gnome/Shell --method org.gnome.Shell.Eval 'Main.panel.statusArea.aggregateMenu._arrow.visible = true;'
    or
  • gdbus call --session --dest org.gnome.Shell --object-path /org/gnome/Shell --method org.gnome.Shell.Eval 'Main.panel.statusArea.aggregateMenu._arrow.show();'

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Tcpdumps of AVR-1713. Reason for dumps: If Denon ever discontinues the vtuner service I need to serve my receiver these dumps:

Press Favorite Station 1 long to save current station as favorite.

Entrance link http://denon.vtuner.com:80/setupapp/denon/asp/browsexm2/navXML.asp?rLev=&gofile=web&mac=xxxxxxxxxxxxxxxxxx&fver=xxxxxx&dlang=ger&startitems=1&enditems=10

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>^M
<ListOfItems>^M
<ItemCount>3</ItemCount>^M