#!/bin/sh
#
# clean - script for removing *~ *.o #*# files
#         prints matching files in current directory and prompts before deletion
#
# Written by Todd Lisonbee
#
#

if [ -z "$1" ] 
then
  echo "Matching Files:"
  ls *~ 2>/dev/null
  ls \#*\# 2>/dev/null
  ls *.o 2>/dev/null
  echo -n "Do you want to remove all of these files? (y/n) "
  read answer
  case $answer in
    n) echo "No files were removed."
       ;;
    y) rm -vf *~
       rm -vf \#*\#
       rm -vf *.o
       ;;
    *) echo "  *** Invalid Response: $answer -- No files were removed. ***" 
       ;;
  esac
elif [ "$1" = "--help" ]
then
  echo "Usage: clean [OPTION]..."
  echo 'This script is for removing files that match the patterns *~ *.o #*#'
  echo "First it prints the matching files in the current directory and prompts \"Do you" 
  echo "want to remove all of these files? (y/n)\". Then it deletes those files or exits."
  echo " "
  echo "      --help               display this help and exit"
  echo "      --version            output version information and exit"
  echo " "
elif [ "$1" = "--version" ]
then
  echo "clean - version 0.1"
  echo "written by Todd Lisonbee"
else
  echo "  *** Invalid Option: $@ ***"
fi