Basic File Selection

#!/bin/bash

getFile(){
  clear
  PS3="Please Select a File: "
  options=($(find -maxdepth 1 -print0|xargs -0))

  select opt in "${options[@]}" "Quit";
  do
    if (( REPLY == 1 + ${#options[@]}))
    then
      exit
    elif (( REPLY > 0 && REPLY <= ${#options[@]} ))
    then
      opt=$(basename $opt)
      echo "Your file is $opt"
      break
    else
      echo "Not a Valid option.  Please Try again."
    fi
  done

  FILE="`pwd`/$opt"
}

if [ ! -f "$FILE" ]
then
  while [ 1 ]
  do
    getFile
    [[ -d "$FILE" ]] && cd "$FILE"
    [[ -f "$FILE" ]] && break
  done
fi

cat "$FILE"