Count ROMs

count-roms.sh

#!/usr/bin/env bash

# Count ROMs
# Simple script to list ROM files by stripping parts of filename starting with
# one of the following characters '_', '(' or '['. Then count remaining
# duplicates and list them with a counter for each name. This is intended to
# count my Romhacks played on emulators, but may work well for any collection.
#
# First argument can be a directory. Defaults to current directory. Files are
# NOT searched recursively.
#
# Usage: count-roms dir

listing="$(find "${1:-.}" -maxdepth 1 -type f -printf '%f\n' |
    sed -E \
        -e 's/_.*//' \
        -e 's/ \(.*//' \
        -e 's/ \[.*//')"
printf '%s' "${listing}" | sort | uniq -c
printf '%s' "${listing}" | sort -u | wc -l