if [[ $# -eq 1 ]]; then
local magic
magic=$(objdump -p "$1" \
- | awk '{if ($1 == "Magic"){print strtonum("0x"$2)}}')
+ | gawk '{if ($1 == "Magic"){print strtonum("0x"$2)}}')
magic=$(printf "0x%x" "$magic")
# 0x10b (PE32), 0x20b (PE32+)
[[ $magic == 0x20b || $magic == 0x10b ]] && return 0