#!/bin/bash

# creating and using a temp file

tempfile=`mktemp test.XXXXXX`

exec 3>$tempfile

echo "This script writes to temp file $tempfile"

echo "This is the first line" >&3
echo "This is the second line" >&3
echo "This is the last line" >&3

exec 3>&-

echo "Done creating temp file. The contents are:"

cat $tempfile

rm -f $tempfile 2>/dev/null