.bash_profile that includes more colour, maintains history between tabs by writing each prompt display, also allows the user of up to traverse through items that start with x

.bash_profile

source ~/.profile

# Setup binary path locations
export PATH=/bin:/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:$PATH
export EDITOR='subl -w'

# Make Bash append rather than overwrite the history on disk:
shopt -s histappend

# Whenever displaying the prompt, write the previous line to disk:
PROMPT_COMMAND='history -a'

eval "$(rbenv init -)"

# Part of git completion
# brew install git bash-completion
# https://github.com/bobthecow/git-flow-completion/wiki/Install-Bash-git-completion
if [ -f `brew --prefix`/etc/bash_completion ]; then
    . `brew --prefix`/etc/bash_completion
fi

# brew install grc
# https://github.com/mifix/homebrew-grc
source "`brew --prefix`/etc/grc.bashrc"

# Tell ls to be colourful
export CLICOLOR=1

# Tell grep to highlight matches
export GREP_OPTIONS='--color=auto'

# Automatically assign proxy settings within terminal (http://blog.willcannings.com/2011/08/17/automatically-assign-http_proxy-in-os-x-lion/)
export http_proxy=`networksetup -getwebproxy Wi-Fi | awk '{ if(NR == 1) enabled=$2; else if(NR == 2) server=$2; else if(NR == 3) port=$2;} END {if(enabled == "Yes") print "http://" server ":" port}'`
export https_proxy=`networksetup -getsecurewebproxy Wi-Fi | awk '{ if(NR == 1) enabled=$2; else if(NR == 2) server=$2; else if(NR == 3) port=$2;} END {if(enabled == "Yes") print "http://" server ":" port}'`