rfc

tcp/ip原理的第三卷

#! /bin/sh
HOST=nic.ddn.mil
PATH=/bin:/usr/bin:/usr/local/bin:/usr/ucb
pub=/userb/abv/.rfc
umask 022

for i
do
	if test $i = "index"
	then
		i="-index"
	fi
	if test ! -r $pub/$i -a ! -r $pub/$i".Z" -o $i = "-index"
	then
		trap "rm -f $pub/$i; echo Transfer interrupted - $pub/$i removed; exit 1" 1 2 3 13 15 24 25
		ftp -n ${HOST}  >/dev/null <<!
user anonymous guest
binary
get rfc/rfc$i.txt $pub/$i
quit
!
		trap 1 2 3 13 15 24 25
	fi

	if test -r $pub/$i
	then
		cat $pub/$i
	elif test -r $pub/$i".Z"
	then
		zcat $pub/$i
	else
		echo Could not retrieve RFC $i 
	fi
done
chmod 666 $pub/-index >/dev/null 2>&1