Blink the screen when your Mac needs to charge

1. Enable invert colors shortcut:
   System Preferences... -> Keyboard -> Accessibility -> Invert colors [x]
2. Allow macscript to modify Accessibility
   System Preferences... -> Security & Privacy -> Accessibility -> Privacy -> + -> osascript
3. Test that it's working from your shell:
   osascript -e "tell application \"System Events\"" -e "key code 28 using {command down, option down, control down}" -e "end tell"
4. Create the script
   sudo vim /etc/batteryScript.applescript
   
   set Cap to (do shell script "ioreg -w0 -l | grep ExternalChargeCapable")
   tell Cap to set {wallPower} to {last word of paragraph 1}
   if wallPower = "Yes" then
    return 0
   else
    set Cap to (do shell script "ioreg -wO -l | grep AppleRaw")
    tell Cap to set {Max, Available} to {last word of paragraph 2, last word of paragraph 1}
    set Pct to round (100 * Available / Max)
    if Pct <= 5 then
     tell application "System Events" key code 28 using {command down, option down, control down}
     end tell
     delay 1
     tell application "System Events"
      key code 28 using {command down, option down, control down}
     end tell
     if Pct <= 3 then
      delay 1
      tell application "System Events"
       key code 28 using {command down, option down, control down}
      end tell
      delay 1
      tell application "System Events"
       key code 28 using {command down, option down, control down}
      end tell
      delay 1
      tell application "System Events"
       key code 28 using {command down, option down, control down}
      end tell
      delay 1
      tell application "System Events"
       key code 28 using {command down, option down, control down}
      end tell
      if Pct <= 1 then
       display notification "Computer is about to shutdown!" with title "---=== WARNING ===---"
       beep 5
       do shell script "say -v \"Alex\" \"PLUG ME IN NOW\""
      end if
     end if
    end if
   end if
5. Configure script access:
   sudo chmod +rx /etc/batteryScript.applescript
6. Invoking script
   vim ~/Library/LaunchAgents/batteryAlert.plist
   
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
    <dict>
     <key>KeepAlive</key>
     <false/>
     <key>Label</key>
     <string>batteryAlert</string>
     <key>LowPriorityIO</key>
     <true/>
     <key>ProgramArguments</key>
     <array>
      <string>/usr/bin/osascript</string>
      <string>/etc/batteryScript.applescript</string>
     </array>
     <key>RunAtLoad</key>
     <true/>
     <key>ServiceDescription</key>
     <string>Battery Alert</string>
     <key>StartInterval</key>
     <integer>30</integer>
    </dict>
   </plist>
   
   
7. Reboot the OS or manually load the launchd module.
   launchctl load ~/Library/LaunchAgents/batteryAlert.plist

macOS config for Finder

Open the terminal

Full path in Finder title bar$ defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES
Show all files
$ defaults write com.apple.finder AppleShowAllFiles YES

Hold 'alt' on your keyboard, then right click on the Finder icon in the dock and click Relaunch.

OR

$ killall Finder

To unable the F* keys on the keyboard:
Choose Apple Menu > System Preferences.
Click Keyboard.
Click the Keyboard tab.
Select the option Use All F1, F2, etc. keys as standard function keys.
Quit System Preferences.


IMPORTANT: When this option is selected, press the Fn key to use the special features printed on each key.

Macbook Pro setup

===========================

Configure Keyboard

———————————————————————

Download the Fr-Ca

https://github.com/ergosteur/cf-keylayout/archive/master.zip

Copy:

cf.icns and cf.keylayout

To:

/Library/Keyboard

In the .profile:

# .profile

bash

In the ".bashrc" file, you can add...

To add the time/date in the history:

HISTTIMEFORMAT="%d/%m/%y %T "

Shortcut for "ls -l":

alias ll='ls -l'

Modify the prompt:

export PS1="\n\u@\h \w\n$ "

Add magic to the space !cmd ...

bind Space:magic-space

Configure IntelliJ

Remove some files from the projet view
File -> Settings -> File Types :
Ignore files and folders

...;.surefire-*;*.iml;.idea;.gitignore


Plugins
CheckStyle-IDEA
String Manipulation
Copy on steroids - http://plugins.jetbrains.com/plugin/7198
Markdown
Lombok

HTML report for unit tests

# Run tests and generate .xml reports
mvn clean test

# Convert .xml reports into .html report, but without the CSS or images
mvn surefire-report:report-only

# Put the CSS and images where they need to be without the rest of the
# time-consuming stuff
mvn site -DgenerateReports=false

Go to target/site/surefire-report.html for the report.

Terminal code \E?1034h

When  I was working with cqlsh (the command line client for Cassandra database), I tried to create a cleanup script which execute some CQL delete queries.  It turns out, the cqlsh client is a python-based command line client and it could generate a special code, a shell escape sequence (\E[?1034h).
I found more inforation here.

Libraries / frameworks

Java libs
JHipster
Spring Boot
Metrics
Logback
Ehcache
Jersey


Java Tools
Maven (plugins: surefire, surefire-report, assembly, antrun, javadoc, source, checkstyle, eclipse, help)
Ant
Tomcat / Jetty
Eclipse / IntelliJ

JavaScript
AngularJS
KnockoutJS
Deck.js
highlight.js

JavaScript Tools / Node.js
GruntJS
Bower
Karma
NodeJS
Jasmine
Mustache
UnderscoreJS
Firebug

CSS
SASS
LESS

CSS Tools
Compass


API References
JavaScript
Graphite