### Requirements

#### Linux
* grep (GNU grep) 2.20
* sed (GNU sed) 4.2.2
* awk (GNU awk) 4.1.1
* nmap v6.46
* dig v9.9.2-P2
* curl (OpenSSL/1.0.1j) 7.37.0
* nslookup

#### OSX
```
brew tap homebrew/dupes
brew install coreutils
brew install bash
brew install gpatch
brew install m4
brew install make
brew install file-formula
brew install git
brew install less
brew install openssh
brew install python
brew install rsync
brew install svn
brew install unzip
brew install vim --override-system-vi
brew install binutils
brew install diffutils
brew install ed --default-names
brew install findutils --with-default-names
brew install gawk
brew install gnu-indent --with-default-names
brew install gnu-sed --with-default-names
brew install gnu-tar --with-default-names
brew install gnu-which --with-default-names
brew install gnutls
brew install grep --with-default-names
brew install gzip
brew install watch
brew install wdiff --with-gettext
brew install wget
brew install cmake bash-completion pcre openssl readline autoconf automake gcc nmap
```

And [here](https://github.com/txthinking/dotfiles/blob/master/osxbash/.bash_profile#L2-L8), and don't forget to run `$ source ~/.bash_profile`