Merges multiple ZIP files into a single ZIP

zipmerge.sh

#!/bin/bash

OUT_NAME="$1"
shift
IN_NAMES="$@"
TMP_DIR=$(mktemp -d)

# Unzip each input ZIP
for IN_NAME in $IN_NAMES; do
	unzip -n "$IN_NAME" -d "$TMP_DIR"
done

# ZIP all contents of uncompressed output into the temporary directory
(cd "$TMP_DIR"; zip -r "$OUT_NAME" *)

# Move output ZIP to final location
mv "$TMP_DIR"/"$OUT_NAME" "$OUT_NAME"

# Check contents of output ZIP
unzip -l "$OUT_NAME"

# Clean up all temporary files
rm -r "$TMP_DIR"