#!/bin/bash

function in_envpath()
{
  for path in $(sed 's/:/\n/g' <<< $PATH)
  do
    if [ $path = $1 ]; then
      return 0 # 0 = success!
    fi
  done
  return 1 # non-zero = failure
}


function add_to_envpath()
{
  if in_envpath $1; then
    return 0 # Success! Path is already IN $PATH
  fi
  if [ -d "$1" ]; then
    PATH="$PATH:$1"
  fi
}