Add $(npm bin) to $PATH

example.sh

# Ensures that a locally-installed version of an NPM package will always be
# preferred over a globally installed version, and that we can run that
# package's executable like any other binary. To ensure a rogue package cannot
# install an executable that could shadow another binary (ie: 'ssh') make sure
# that $(npm bin) is appended rather than prepended to your existing $PATH.
export PATH="$PATH:$(npm bin)"