Switch between AWS accounts

aws_profile

#!/bin/bash
#
#  aws_profile
#
#  Manages multiple AWS accounts through symlinks.
#

if [ ! -d ~/.aws ]; then
  echo "ERROR: can't find \${HOME}/.aws directory" 1>&2
  exit 1
fi

cd ~/.aws

function report_current() 
{
  current=$(ls -la current | sed 's/^.*-> //g')
  if [ -z "${current}" ]; then
    echo none
  else
    echo ${current}
  fi
}

function switch_current()
{
  target="$1"
  if [ -d "${target}" ]; then
    rm -f current
    ln -s "${target}" current
    echo "Switched to ${target}"
  else
    echo "Profile ${target} not found (or not mounted)"
  fi
}

function usage()
{
  echo "Usage: aws_profile [profile]" 1>&2
  exit 1
}

if [ $# -eq 0 ]; then
  report_current
elif [ $# -eq 1 ]; then
  switch_current "$1"
else
  usage
fi