up-awscli-install

#!/usr/bin/env bash

set -eou pipefail

install_aws(){
  local tmpdir="$1"
  curl "https://s3.amazonaws.com/aws-cli/awscli-bundle.zip" -o "$tmpdir/awscli-bundle.zip"
  cd $tmpdir
  unzip $tmpdir/awscli-bundle.zip
  python $tmpdir/awscli-bundle/install -b ~/bin/aws
}

cleanup_aws(){
  local tmpdir=$1
  rm -rf "$tmpdir/awscli-bundle*"
}

main(){
  if [[ ! -x $(which aws 2>&1 /dev/null) ]];then
    if [[ ! -d $HOME/bin ]];then
      mkdir "$HOME/bin"
    fi

    local tmpdir="${HOME}/.cache"
    if [[ ! -d $tmpdir ]];then
      mkdir $tmpdir
    fi
    install_aws "$tmpdir"
    cleanup_aws "$tmpdir"
  fi
}

main "$@"

Wrap the AWSCLI install script and install it for non-sudo systems into ~/bin. User level install.