#!/usr/bin/env bash
# top10bigfiles.sh
# Usage: ./top10bigfiles.sh [PATH]
# Prints the ten largest files beneath PATH (default: current dir),
# human‑readable, sorted biggest → smallest.

TARGET="${1:-.}"

if command -v numfmt >/dev/null 2>&1; then
  # GNU coreutils present: easy byte→IEC conversion
  find "$TARGET" -type f -printf '%s\t%p\n' 2>/dev/null \
    | sort -nr \
    | head -n 10 \
    | numfmt --to=iec --field=1 --padding=7 \
    | column -t
else
  # Fallback without numfmt
  find "$TARGET" -type f -printf '%s\t%p\n' 2>/dev/null \
    | sort -nr \
    | head -n 10 \
    | awk '{
        split("B KB MB GB TB PB",u);
        s=$1; i=1;
        while (s>=1024 && i<6) {s/=1024; i++}
        size=sprintf("%.1f %s",s,u[i]);
        sub($1 FS,"");                     # remove size from $0, leave full path (handles spaces)
        printf "%-8s  %s\n", size, $0;
    }' \
    | column -t
fi