创建临时目录

#!/bin/bash

# using a temporary directory

tempdir=`mktemp -d dir.XXXXXX`
cd $tempdir

tempfile1=`mktemp temp.XXXXXX`
tempfile2=`mktemp temp.XXXXXX`
exec 7> $tempfile1
exec 8> $tempfile2

echo "Sending data to directory $tempdir"
echo "This is a test line of data for $tempfile1" >&7
echo "This is a test line of data for $tempfile2" >&8