Snippet to get the dependencies and size of those dependencies for any package install

getSizeandDepends.sh

#!/bin/bash
LIST=$1

PACKAGE_LIST=$(dpkg --get-selections | awk '{ print $1 }' | grep -v -e "-dbg" | cut -f1 -d":")

getsize () {
  size=$(apt-cache --no-all-versions show $1 | grep Installed-Size | awk '{ print $2 }')
  ((NEEDED+=$size))
}

for package in $LIST; do
 getsize $package
 DEPENDENCIES=$(apt-cache depends $package | grep Depends | awk '{ print $2 }')
 for dependency in $DEPENDENCIES; do
  if [[ ! $PACKAGE_LIST =~ [^.[:alnum:]-]"$dependency"[^.[:alnum:]-] ]]; then
    getsize $dependency
  fi
 done
done

echo "$NEEDED kb"