List only executable files (and not folders)

lsexec.sh

#!/bin/bash

# List only executable files
# Will ignore folders

# Gustavo Arnosti Neves
# https://github.com/tavinus

# Usage ./lsexec.sh
#       ./lsexec.sh <path>

# One-liners
# wget 'https://gist.githubusercontent.com/tavinus/4cf3f0fc18b09b7f324d87064c4d8e49/raw/lsexec.sh' && chmod +x lsexec.sh
# curl -L -O -J 'https://gist.githubusercontent.com/tavinus/4cf3f0fc18b09b7f324d87064c4d8e49/raw/lsexec.sh' && chmod +x lsexec.sh

# System Install
# sudo cp lsexec.sh /usr/bin/lsexec && sudo chmod +x /usr/bin/lsexec
# lsexec

rp=''
if [[ ! -z "$1" ]]; then
    rp="$(realpath -m "$1")"'/'
    if [[ ! -d "$rp" ]]; then
        printf "%s\n" "Error! \"$rp\" is not a valid folder to read from..." >&2
        exit 1
    fi
fi

for i in "$rp"* ; do [[ -x "$i" ]] && [[ ! -d "$i" ]] && printf "%s\n" "$i" ; done