Bash/zsh function to unzip a set of files to a set of directories

unz.sh

# Unzip a set of files to archive-specific directories
# Example: unz *.zip
unz() {
  if [ -z "$1" ]; then
    echo 'usage: unz FILE...'
  else
    for file in "$@"; do
      /usr/bin/unzip -d "$file.unz" "$file"
    done
  fi
}