Shell Programming and Scripting

#!/bin/bash

function removei () {



clear

if [[ -d $file ]]; # -d allows to check if the value is a directory
     then
                                echo -e "are you sure you want to remove this directory (y/n)"
                                        read ANSWER


                case "$ANSWER" in 

                                        [Yy]) echo "the directory $file has been deleted"
                                                    mv $file $HOME/deleted
                                                    shift
                                                    ;;

                                        [Nn]) echo -e "exiting"
                                                       exit
                                                       ;;


                                        *) echo "Answer y or n"
                                                ;;

                 esac

elif [[ -f $file ]]; # -f allows to check if the value is a file
        then
                               echo "are you sure you want to remove the file (y/n)"

                                   read  ANSWER1
case "$ANSWER1" in


                                        [Yy]) echo "the file $file  has been deleted"
                                                    mv $file $HOME/deleted
                                                    shift
                                              echo "the file $file  has been deleted"
                                                    mv $file $HOME/deleted
                                                    shift

                                                    ;;

                                        [Nn]) echo "exiting"
                                                    exit;;


                                        *) echo "Answer y or n";;

                esac

else
        echo "$file does not exist" 
fi


}

file=$2

while getopts "ivfrR:" option



do

case $option in

        i) removei;;

        v) removev;;

        f) removef;;

esac

shift 1

done

function removei
{
    echo "removei: $f"
}

method="i"                # default method should the script be invoked without flags
while getopts "ivr" flag     # set method based on the command line options
do
    case $flag in
        i)  method=i;;
        r)  method=r;;
        v)  method=v;;
    esac
done

shift $(( ${OPTIND:-1} - 1 ))   # shift away 'used' flags and flag/data
while [[ -n $1 ]]   # until there are no more positional parameters
do
    f=$1              # assign file name each pass of the loop
    case $method in    # invoke method selected by -i|-v|-r above for current file
        i)  removei;;
        v)  echo "removev";;
        r)  echo "removev";;
    esac

    shift      # shift away last file/directory worked on 
done

exit

function removei
{
    echo "removei: $f"
}