Mac survival kit

• ask different
• https://apple.stackexchange.com/
• fonctionalities
• fn + F12.  go to dashboard (calendar, calculator)
• about .bash_profile
• https://stackoverflow.com/questions/49997987/where-is-the-profile-file-on-mac/49998052#49998052
• MacOS (formerly OS X) is based on BSD Unix
• https://en.wikipedia.org/wiki/MacOS#/media/File:Unix_timeline.en.svg
• list of installs made:
• less /Library/Receipts/InstallHistory.plist
• machine info
• sysctl -n machdep.cpu.brand_string
• system_profiler | grep Processor
• system_profiler
• updatedb
• (base) lee@a8:~$ sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.locate.plist
• (base) lee@a8:~$ sudo /usr/libexec/locate.updatedb
• (base) lee@a8:~$ locate logs
• install kdiff3
• brew cask install https://raw.githubusercontent.com/Homebrew/homebrew-cask/6a96e5ea44803e52a43c0c89242390f75d1581ab/Casks/kdiff3.rb 
• if you need to untar things like mvn, you can do so in /usr/local using sudo. Other folders are protected even using sudo 
• colors
• console and vi: 
• go to terminal (console) / preferences / Profiles / Basic / ANSI Colors
• change them
• brew
• brew list
• brew doctor
• brew services list
• brew services info docker-machine 
• brew services start tomcat
• zsh
• ps -ef,   htop prefered
• sometimes buggy, switch to bash 
• ex: find . |grep ".py"|xargs grep fill  (not working on my zsh)
• this works on zsh but not on sh for big files
• sort -u toto.txt > out.txt

• network (use bash)

• tcpdump -n -A -p -i lo0 host 127.0.0.1 > tmp.txt

• java
• installed JVM
• lee@al8:~/dev/nemo-etab-etl$ /usr/libexec/java_home -V
• Matching Java Virtual Machines (3):
•     17.0.10 (x86_64) "Oracle Corporation" - "Java SE 17.0.10" /Library/Java/JavaVirtualMachines/jdk-17.jdk/Contents/Home
•     15.0.2 (x86_64) "Oracle Corporation" - "Java SE 15.0.2" /Library/Java/JavaVirtualMachines/jdk-15.0.2.jdk/Contents/Home
•     11.0.7 (x86_64) "Oracle Corporation" - "Java SE 11.0.7" /Library/Java/JavaVirtualMachines/jdk-11.0.7.jdk/Contents/Home
• /Library/Java/JavaVirtualMachines/jdk-17.jdk/Contents/Home
• ll /Library/Java/JavaVirtualMachines/
• switch version, just change JAVA_HOME
• # export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk-11.0.7.jdk/Contents/Home"
• export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk-17.jdk/Contents/Home"

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