Solutions

1.	#!/bin/ksh
	# File: echoargs
	echo $*

2.	#!/bin/ksh
	# File: reverse
	echo $5 $4 $3 $2 $1

3.	#!/bin/ksh
	# File: reverse5
	if [ $# -ne 5 ] ; then
  	   echo "Usage: reverse5 arg1 arg2 arg3 arg4 arg5"
  	   exit
	fi
	echo $5 $4 $3 $2 $1

4.	mkdir $HOME/Deleted

	#!/bin/ksh
	# File: purge
	if [ $# -ne 1 ] ; then
   	   echo "Usage: $0 $1"
	fi
	cp $1 $HOME/Deleted
	rm $1

5.	#!/bin/ksh
	# File: pid
	touch mine$$	# A one liner

