Linux command tips

Logout all users: pkill -u username

SSH port forwards: ssh -L port:127.0.0.1:port -lAccount -N RemoteIP

add text at the end of each line in unix : awk '$0=$0" | --recursive"'

Mac command line

• Check mac version: sw_vers -productVersion 
• Change HostName: sudo scutil --set HostName nameyouwant
• Change hostname: sudo hostname mbpr

• To start an application from command line, TeamViewer for example:

       > open -g -a /Applications/TeamViewer.app

• To gracefully quit instead of kill-ing:

      > osascript -e 'quit app "TeamViewer.app"'

• Open multiple VLC
  /Applications/VLC.app/Contents/MacOS/VLC
• Restart from terminal: 
• sudo shutdown -r now 
• sudo shutdown -h +5 
• 
  

With details on hiding given by: https://support.apple.com/en-au/ht203998

pwpolicy can both disable and enable users, without losing their password

To disable the user

pwpolicy -u username disableuser

To enable the user

pwpolicy -u username enableuser

Use dscl to hide the user so they don't show on login:

sudo dscl . create /Users/username IsHidden 1 

To show a hidden user

sudo dscl . create /Users/username IsHidden 0 

Brew tip

Official site: http://brew.sh/

Brew Installation:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Install Java:
brew tap caskroom/cask
brew install brew-cask
brew cask install java

Install wget:

brew install wget

Install unrar:

brew install unrar

Install Ruby:

https://gorails.com/setup/osx/10.10-yosemite 

Install php mcrypt:
brew install homebrew/php/php56-mcrypt

Search php module:
brew search php | grep mcrypt

Install Pillow:
brew install libtiff libjpeg webp little-cms2

pip install Pillow