• system information
  • get osx info
  • reboot if system freezes
  • setup hostname and localhostname
  • setup bash as default SHELL
  • disable guest user
  • GO TO HIDDEN PATH IN FINDER
  • reindex spotlight
  • copy STDOUT into clipboard
  • Copy path from finder
• System Integrity Protection
• change Mac default settings
• development environment
  • setup JAVA_HOME
  • xCode
• Homebrew
• system settings
• accessory
• q&a
  • x86_64 liblzma.dylib in nokogiri

[!TIP|label:reference]

• osx chflags man page
• Show Hidden Files in Mac OS X
• Mac Keyboard Shortcuts
• How to reinstall macOS
• How to Find the Wi-Fi Password of your Current Network
• How to Find Wi-Fi Network Passwords from Command Line on Mac
• 5 Stupid Terminal Tricks to Keep You Entertained
• Install Nokogiri
• OSX实用命令
• Locking files and folders to prevent changes

system information

get osx info

$ sw_vers
ProductName:  Mac OS X
ProductVersion: 10.15.6
BuildVersion: 19G73

# or
$ sw_vers --productName
macOS
$ sw_vers --productVersion
14.4.1

$ /usr/sbin/system_profiler SPHardwareDataType
Hardware:

    Hardware Overview:

      Model Name: MacBook Pro
      Model Identifier: MacBookPro15,1
      Processor Name: 6-Core Intel Core i7
      Processor Speed: 2.2 GHz
      Number of Processors: 1
      Total Number of Cores: 6
      L2 Cache (per Core): 256 KB
      L3 Cache: 9 MB
      Hyper-Threading Technology: Enabled
      Memory: 16 GB
      Boot ROM Version: 1037.147.1.0.0 (iBridge: 17.16.16065.0.0,0)
      Serial Number (system): C02XFGWEJG5H
      Hardware UUID: 4EA008BF-9B36-5F1D-9151-AD4F64808AAB
      Activation Lock Status: Enabled

get CPU information

$ sysctl -n machdep.cpu.brand_string
Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz

# or
$ sysctl machdep.cpu
machdep.cpu.max_basic: 22
machdep.cpu.max_ext: 2147483656
machdep.cpu.vendor: GenuineIntel
machdep.cpu.brand_string: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
machdep.cpu.family: 6
...

get more details

$ sysctl -a

reboot if system freezes

$ sudo systemsetup -setrestartfreeze on

setup hostname and localhostname

$ sudo scutil --set HostName [HOSTNAME]
$ sudo scutil --set LocalHostName [HOSTNAME]
$ sudo scutil --set ComputerName [HOSTNAME]             # Optional
$ dscacheutil -flushcache                               # Flush the DNS Cache
$ sudo shutdown -r now

setup bash as default SHELL

$ chsh -s /bin/bash
# OR
$ chsh -s `which bash`

disable guest user

$ dscl . delete /Users/Guest
$ sudo defaults write /Library/Preferences/com.apple.AppleFileServer guestAccess -bool NO
$ sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.smb.server AllowGuestAccess -bool NO

GO TO HIDDEN PATH IN FINDER

Command+Shift+G

reindex spotlight

$ sudo mdutil -i on /
$ sudo mdutil -E /
$ sudo mdutil -E /Volumes/marslo/

• or

  $ sudo dutil -i off /
  $ sudo rm -rf /.Spotlight-V100
  $ sudo rm -rf /.Spotlight-V200
  $ sudo mdutil -i on /
  $ sudo mdutil -E /
  $ sudo mdutil -E /Volumes/marslo/
  

copy STDOUT into clipboard

refer to: osx/tricky

Copy path from finder

refer to: osx/tricky

System Integrity Protection

refer to: osx/tricky

change Mac default settings

refer to: osx/defaults

development environment

setup JAVA_HOME

$ /usr/libexec/java_home -v 1.8.0.162 -exec javac -versioin

xCode

refer to osx

xCode installation

• Install from App Store
• Offline Package
  • xCode 9.0.1
  • Command_Line_Tools_macOS_10.13_for_Xcode_9.0.1
  • All Packages
• more details

xCode setup

$ sudo xcodebuild -license [accept]

xCode commandline tools

• verify installed or not

  $ xcode-select -p
  

• xCode commandline tools installation

  $ xcode-select --install
  xcode-select: note: install requested for command line developer tools
  

• upgrade commandline tools

  $ softwareupdate --all --install --force
  

  • or

    $ sudo rm -rf /Library/Developer/CommandLineTools
    $ sudo xcode-select --install
    

• list history `bash $ softwareupdate --history

xcode components installation

$ for pkg in /Applications/Xcode.app/Contents/Resources/Packages/*.pkg; do
>   sudo installer -pkg "$pkg" -target /;
> done

• example:

  $ ls -altrh /Applications/Xcode.app/Contents/Resources/Packages/
  total 180512
  -rw-r--r--   1 root  wheel    87K Mar 10  2017 MobileDeviceDevelopment.pkg
  -rw-r--r--   1 root  wheel   5.4M Sep 30 05:28 XcodeSystemResources.pkg
  -rw-r--r--   1 root  wheel    11K Sep 30 05:28 XcodeExtensionSupport.pkg
  -rw-r--r--   1 root  wheel    83M Sep 30 05:28 MobileDevice.pkg
  drwxr-xr-x   6 root  wheel   204B Oct 11 05:23 ./
  drwxr-xr-x  87 root  wheel   2.9K Oct 11 05:55 ../
  
  $ for pkg in /Applications/Xcode.app/Contents/Resources/Packages/*.pkg; do
   -> sudo installer -pkg "$pkg" -target /;
   -> done
  installer: Package name is MobileDevice
  installer: Upgrading at base path /
  installer: The upgrade was successful.
  installer: Package name is MobileDeviceDevelopment
  installer: Installing at base path /
  installer: The install was successful.
  installer: Package name is XcodeExtensionSupport
  installer: Installing at base path /
  installer: The install was successful.
  installer: Package name is XcodeSystemResources
  installer: Installing at base path /
  installer: The install was successful.
  

enable developer mode

$ DevToolsSecurity -enable

show sdk path

[!NOTE|label:more:]

• * iMarslo: osx/apps

$ xcrun --show-sdk-path
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk

Homebrew

refer to: osx/apps.md

system settings

refer to: osx/apps

accessory

refer to: osx/apps

q&a

x86_64 liblzma.dylib in nokogiri

• solution 1:

  $ brew unlink xz
  $ gem install nokogiri # or gem install cupertino
  $ brew link xz
  

• solutioin 2 (using system libraies):

  $ brew install libxml2
  $ gem install nokogiri -- --use-system-libraries --with-xml2-include=$(brew --prefix libxml2)/include/libxml2
  
  # or
  $ bundle config build.nokogiri --use-system-libraries --with-xml2-include=$(brew --prefix libxml2)/include/libxml2
  $ bundle install
  
  # or
  $ brew link --force libxml2
  $ gem install nokogiri -v '1.7.0.1'  -- --use-system-libraries --with-xml2-include=/usr/include/libxml2 --with-xml2-lib=/usr/lib