#!/bin/bash
# How many commands: A simple script to count how many executable 
#   commands are in your current PATH.

IFS=":"
count=0 ; nonex=0
for directory in $PATH ;  do
  if [ -d "$directory" ] ; then
    for command in "$directory"/* ; do

      if [ -x "$command" ] ; then
        count="$(( $count + 1 ))"
      else
        nonex="$(( $nonex + 1 ))"
      fi
    done
  fi
done

echo "$count commands, and $nonex entries that weren't executable"

exit 0