#!/bin/ksh
#This shellscript is ~/bin/rm, my own version of rm.
#First argument can be an optional -i or -f.

interactive=0
while [[ "$1" == -i || "$1" == -f ]]   #two =s for string compare
do
	if [[ "$1" == -i ]]
	then
		interactive=1                  #one = to assign
	fi
	shift          #move args left, subtract 1 from $#, p. 155
done

for filename
do
	if [[ $interactive -eq 1 ]]   #-eq to compare two numbers
	then
		echo $0: remove $filename'? \c'   #Hand 5, pp. 14, 21  for \c
		read answer
		if [[ "$answer" != y* ]]          #Like -P* in Handout 7, p. 2.
		then
			continue          #go back to top of "for": ksh(1) p. 39
		fi
	fi
	mv $filename ~/.trash/${filename##*/}$$
done

if [[ -t 2 && `ls ~/.trash | wc -l` -ge 20 ]]
then
	echo $0: time to empty or compress the .trash 1>&2
fi

exit 0