zsh gem(1)

zsh is my favorate shell, super powerful. there are a lot of blogs about it, and I recommend
a book From bash to z shell, and the site also contains some wonderful references.

Here I just wanna show some cool quick snippets of what zsh capable of, just for fun.
So guess what this does?

compare_dirs.shview raw
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#!/bin/zsh

if [ $# -lt 2 ]; then
    echo "need src dest dir to compare"
    exit 1
fi

pushd $1
print -l *(e:'[[ ! -e $2/$REPLY ]]':) 2>/dev/null
popd


#pushd $2
#print -l *(e:'[[ ! -e $1/$REPLY ]]':) 2>/dev/null
#popd