#!/usr/bin/env bash

# Count files
self=cf

# Specify directory to check, defaults to current dir
dirname=${1:-"$PWD"}

# Error conditions
if [[ ! -e $dirname ]] ; then
    printf '%s: %s does not exist\n' \
        "$self" "$dirname" >&2
    exit 1
elif [[ ! -d $dirname ]] ; then
    printf '%s: %s is not a directory\n' \
        "$self" "$dirname" >&2
    exit 1
elif [[ ! -r $dirname ]] ; then
    printf '%s: %s is not readable\n' \
        "$self" "$dirname" >&2
    exit 1
fi

# Count files and print; use dotglob and nullglob so we get an accurate count
shopt -s dotglob nullglob
declare -a files=("$dirname"/*)
printf '%u\t%s\n' "${#files[@]}" "$dirname"