Flush / Reset DNS Cache on Mac OS X
If you want to reset / flush the DNS cache on Mac OS X Mavericks or Yosemite use this command: dscacheutil -flushcache
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Git branch name in your prompt
When you want to get something similar like idea:~/my/project/hybris/order-service (develop) as your Bash prompt on a Mac or perhaps some other Unix OSs — where "( develop )" could be your currently checked out Git branch — add this PS1='\h:\[\e[0;31m\]\w\[\e[m\]`__git_ps1` ' or PS1='\h:\[\e[0;31m\]\w\[\e[m\] \e[1;31m\]$(__git_ps1 %s)\e[m ' to your ~/.bash_profile Alternatively you could use PS1='`__git_ps1` ' just to see the branch name.
How to install a *.pkg file from the command line (CLI) on Mac OS X
sudo installer -pkg installer-osx-amd64.pkg -target LocalSystem ...where installer-osx-amd64.pkg is the package file that is installed and LocalSystem the default installation target.