Bash profile (created for mac terminal) which I use. To keep this updated without impacting your additions, edit the file ~/.bash_adds which is added after restarting your terminal or doing a "source ~/.bash_profile"

.bash_profile.sh

# advise not editing this file for copy/paste drop in updating (not that I update this gist that often).
# when you source this file (or restart term), a ~/.bash_adds file is created which get's sourced from this file.
# Feel free to edit this file in your ~/.bash_profile file, but don't blame me if you overwrite some cool addtions :) 

# -- old -- export PS1="\[\033[36m\]\u\[\033[m\]@\[\033[32m\]\h:\[\033[33;1m\]\w\[\033[32m\]\$(parse_git_branch)\[\033[00m\]\$ "
export PS1="\n\[\033[48;5;235m\]\[\033[36m\]\u\[\033[m\]\[\033[48;5;235m\]@\[\033[32m\]\h\[\033[38;5;245m\] | \[\033[38;5;99m\]Node: \$(parse_node_version)\[\033[38;5;245m\] | \[\033[38;5;204m\]\$(parse_date_time)\[\033[00m\]\n\[\033[33;1m\]\w\[\033[32m\]\$(parse_git_branch)\[\033[00m\]$ "

export CLICOLOR=1
export LSCOLORS=DxFxBxDxCxegedabagacad

# general
alias grepn='grep -n --exclude-dir=node_modules -r '

# mongodb
alias runmongo='mongod --config /usr/local/etc/mongod.conf -fork'
alias runmongo34='mongod --config /usr/local/etc/mongod3.4.conf -fork'

# react native
alias reactkill='lsof -t -i :8081 | xargs kill -9'
alias rn_rebundle_android='react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res'
alias greprn='grep -n --exclude-dir=node_modules --exclude-dir=android --exclude-dir=ios --exclude-dir=__tests__ -r '

# history grep, takes char(s) to grep on as param. Could be expanded to do more, but haven't bothered (yet)
alias hg='history | grep '

# list all hosts configured in ssh config (if exists)
alias ssha='grep -i -e ^host ~/.ssh/config | cut -d" " -f 2'
# alternate? not sure, don't remember
# alias sshhosts='grep "Host " ~/.ssh/config | cut -d" " -f2'

# show all your network connections with alternate grep char(s)
alias mynetcon="sudo lsof -n -P -i +c 15"
alias mynetcong="sudo lsof -n -P -i +c 15 | grep "

# nodejs grep (excludes node modules)
alias grepn='grep -n --exclude-dir=node_modules -r '

# git graphs can use an (optional) last parameter of the number of commits to display (ex usage   gitgraph -10)
alias gitgraph="git log --graph --abbrev-commit --decorate --date=relative --format=format:'%C(bold blue)%h%C(reset) - %C(bold green)(%ar)%C(reset) %C(white)%s%C(reset) %C(dim white)- %an%C(reset)%C(bold yellow)%d%C(reset)' --all"
alias gitgraph2lines="git log --graph --abbrev-commit --decorate --format=format:'%C(bold blue)%h%C(reset) - %C(bold cyan)%aD%C(reset) %C(bold green)(%ar)%C(reset)%C(bold yellow)%d%C(reset)%n''          %C(white)%s%C(reset) %C(dim white)- %an%C(reset)' --all"

# System Aliases
# Speed up or slow down timemachine backups
# Speeding up gives more priority to the process and can have an impact on system performance
alias timemachine_fast='sudo sysctl debug.lowpri_throttle_enabled=0'
alias timemachine_slow='sudo sysctl debug.lowpri_throttle_enabled=1'

# Manual updatedb for use with locate command. Unlike linux, updatedb isn't run on a schedule.
# I'd advise setting updatedb to run on schedule, and use this in between schedules.
alias updatedb='sudo /usr/libexec/locate.updatedb'

# ls variants
alias ls='ls -GFh'
alias ll='ls -la'

# show/hide hidden files/folders in Finder (files with ., like .git, .idea, etc)
alias finder_show_hidden='finderShowHidden'
alias finder_hide_hidden='finderHideHidden'

function finderShowHidden() {
  defaults write com.apple.finder AppleShowAllFiles TRUE
  killall Finder
}
function finderHideHidden() {
  defaults write com.apple.finder AppleShowAllFiles FALSE
  killall Finder
}

export PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin

#Returns the current git branch in the terminal.
parse_git_branch() {
    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

#Returns current nodejs version.
parse_node_version() {
    node -v
}

#Returns current data/time
parse_date_time() {
    date "+%a %h(%m)/%d %I:%M%p "
}

#git command and branch completion
if [ -f ~/.git-completion.bash ]; then
  . ~/.git-completion.bash
else
# this will download the git completion script from master for the latest. If git completion doesn't work after this, 
# you may be using an incompatible (older?) version of git than what's in the master branch. 
# in that case, delete the ~/.git-completion.bash file and update this url below with a raw link that matches your git version (git --version)
# Example url for git version 2.11.0:
# https://raw.githubusercontent.com/git/git/v2.11.0/contrib/completion/git-completion.bash
  echo "Downloading git tab completion script (will only do this once)..."
  curl -o ~/.git-completion.bash https://raw.githubusercontent.com/git/git/master/contrib/completion/git-completion.bash
  . ~/.git-completion.bash
fi


# add second bash file for additional (custom/personalized) additions
if [ -f ~/.bash_adds ]; then
  source ~/.bash_adds
else
  touch ~/.bash_adds
  . ~/.bash_adds
fi