Print the size of a minified & gzip'd js file.

jsize.sh

#!/bin/sh -e
#
# Usage: jsize file.js
#        Print the size of a minified & gzip'd js file.
# e.g.
#   $ jsize src/facebox.js
#   1.4K
#
# Requires uglify-js
#   $ npm install uglify-js

if [ -n "$1" ]; then
  f="/tmp/jsize.$RANDOM.gz"
  uglifyjs -nc $1 | gzip -c - > $f
  ls -lh $f | awk '{ print $5 }'
  rm $f
else
  cat <<usage
Usage: jsize file.js
       Print the size of a minified & gzip'd js file.

Example
  $ jsize src/facebox.js
  1.4K

Requires uglify-js
  $ npm install uglify-js
usage
fi