virtualenvwrapper bootstrap script

vew-bootstrap.sh

#!/bin/bash

mkdir ~/.venv
python3 -m venv ~/.virtualenvs/venv
~/.virtualenvs/venv/bin/pip install virtualenvwrapper

if [ -n "`$SHELL -c 'echo $ZSH_VERSION'`" ]; then
   config=~/.zshrc
elif [ -n "`$SHELL -c 'echo $BASH_VERSION'`" ]; then
   config=~/.bashrc
else
   echo >&2 "preferred shell unknown: $SHELL"
   exit 1
fi

VENVBIN="$HOME/.virtualenvs/venv/bin"

cat > $config <<EOF
    export VIRTUALENVWRAPPER_PYTHON="$VENVBIN/python"
    export VIRTUALENVWRAPPER_VIRTUALENV="$VENVBIN/virtualenv"
    source "$VENVBIN/virtualenvwrapper.sh"
EOF