portzap/libexec/portzap/portzap-erase

#!/bin/sh -e

##
# variables
gitdir=$1
installdir=$2

##
# main
printf "[-] Are you sure ? \n"
printf "[-] These directories will be erased:\n"
printf "    [*] %s \n" "${gitdir}"
printf "    [*] %s \n" "${installdir}"
printf "[y|n] "
while true; do
    read -r r
    if [ "${r}" = "y" ]; then
        break
    elif [ "${r}" = "n" ]; then
        printf "[-] Nothing to do\n"
        exit
    else
        printf "[-] '%s' is not a valid option.\n" "${r}"
        printf "[y|n] "
    fi
done
for dir in "${gitdir}" "${installdir}"; do
    printf "%s  " "${dir}"
    find "${dir}" \
        -maxdepth 1 \
        \! -name "." \
        \! -name ".." \
        \! -name "ports" \
        -exec printf . \; \
        -exec rm -rf "{}" \;
    echo
done
printf "[-] Done\n"