davidbarkhuizen

from https://www.inksaver.co.za

https://www.inksaver.co.za/en/blog/Reset-the-Toner-Life-End-Message-on-Your-Brother-Printer.php

>>>

So you’ve just replaced your Brother toner cartridge in your printer and the 'toner low' or 'replace toner' warning keeps popping up. You’ve tried everything. You’ve taken the toner cartridge out and checked everything is working and all the packaging has been removed. You’ve shaken the cartridge from side to side. You’ve even switched the printer on and off and nothing is making that irritating little message go away. There’s nothing in the user manual to tell you what to do. And worst of all, even though you know the toner cartridge is new, the printer still won’t let you print!
Brother toner cartridges

Relax. Most Brother toner printers need to be told you’ve replaced the toner cartridge. You’ll have to manually reset the counter and, luckily, this is fairly easy to do. We’ve put together a handy list of Brother toner printers and how to reset the toner count on them.

davidbarkhuizen

mac os

window management

full-screen
ctrl + cmd + F

minimize current window
cmd + M

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official scala-lang.org cheat sheet

https://docs.scala-lang.org/cheatsheets/

predef

http://www.scala-lang.org/api/current/scala/Predef$.html

The Predef object provides definitions that are accessible in all Scala compilation units without explicit qualification. <<

scala REPL

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# install bluez-tools
$ sudo apt-get install bluez-tools

# list bt devices
$ bt-device -l

davidbarkhuizen

# sbt version
sbt sbt-version
or
sbt sbtVersion

# get scala version from sbt
$ sbt
[project] $ scala-version

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find files matching expression

e.g. all .dll files in .

$ find . -name "*.dll"

copy directory and contents recursively

$ cp -R source destination/

list processes

-A include processes for all users

davidbarkhuizen

# uninstall java 9 on osx
https://www.java.com/en/download/help/mac_uninstall_java.xml

(confirm folder parths first)

$ sudo rm -fr /Library/Java/JavaVirtualMachines/jdk-9.jdk/
$ sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
$ sudo rm -fr /Library/PreferencePanes/JavaControlPanel.prefPane

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NAVIGATION

# navigate to symbol definition             cmd + B
# navigate backwards                        cmd + opt + left
# navigate forwards                         cmd + opt + right

# goto class                                cmd + O
# goto file                                 shift + cmd + O
# goto symbol                               cmd + opt + O

davidbarkhuizen

>>>
Registering an Application to a URI Scheme
https://msdn.microsoft.com/en-us/library/aa767914(v=vs.85).aspx

To register an application to handle a particular URI scheme, add a new key, along with the appropriate subkeys and values, to HKEY_CLASSES_ROOT. The root key must match the URI scheme that is being added. For instance, to add an "alert:" scheme, add an alert key to HKEY_CLASSES_ROOT, as follows:

HKEY_CLASSES_ROOT
   alert
      URL Protocol = ""

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configure laptop lid-close power behaviour
1. edit systemd config file @ /etc/systemd/logind.conf
2. uncomment & edit line a required
3. restart machine