I need to know the most efficient way of installing JQ on Mac (el capitan). The code is downloaded to my mac but I would like to know how I can install and operate via the command line.
You can install any application/packages with brew on mac. If you need the exact command just search your package on https://brewinstall.org and you will get the set of commands needed to install that package.
Steps to install JQ.
Open a terminal and install brew by using this command:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null
2. Now Install JQ
brew install JQ
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Hope this answer helps.