Article 110 of unix-pc.sources:
Path: tut.cis.ohio-state.edu!mandrill!gatech!rutgers!labrea!agate!ucbvax!ihnp4!ihopa!ihop3!booboo!spear
From: spear@booboo.UUCP (Steve Spearman)
Newsgroups: unix-pc.sources
Subject: ccpio - do compressed backups
Message-ID: <33@booboo.UUCP>
Date: 4 Jun 88 13:22:39 GMT
Distribution: unix-pc
Organization: His Mile High Home Computer
Lines: 119

Here are the scripts mentioned in unix-pc.general for
doing compressed cpio's and recovering them.  Sorry, I
couldn't find my shar program so you'll have to manually
extract them.

These assume cpio's to the floppy, so you don't have to
specify the source/destination.  But it takes most other
cpio flags.

Steve Spearman  (ihnp4, att, ihtlt)!booboo!spear

----cut here for ccpio----
#ccpio - do compressed cpio
trap "rm -f /tmp/ccpio.$$* ; /etc/dismount -f ; exit 1" 1 2 13 15

tmp=/usr/spool/uucppublic/ccpio.sofar
tmpnum=/usr/spool/uucppublic/ccpio.nsofar

cont=false
format=false

while [ "$1" != "" ]
do
	case "$1" in
	-c ) cont=true ;;
	-f ) format=true ;;
	esac
	shift
done

if [ "$cont" = true ]
then
	if [ ! -s $tmp -o ! -s $tmpnum ]
	then
		echo "Both $tmp and $tmpnum must exist in order to continue!"
		exit 1
	fi
	echo "\nccpio is using a pre-existing $tmp file...\n"
	diskno=`cat $tmpnum`
	echo "Put in disk # $diskno and hit <RETURN> ...\c"
	read a
else
	if [ -s $tmp ]
	then
		echo "There is a pre-existing $tmp file."
		echo "If you want to continue with it, invoke 'ccpio -c'."
		echo "Otherwise, remove it and re-start 'ccpio'."
		exit 1
	fi
	# grab the list of files
	cat - > $tmp
	echo 1 > $tmpnum
	diskno=`cat $tmpnum`
	rm -f /tmp/ccpio.disk*
fi
go=true
echo "\n`wc -l < $tmp` files are going to be written ...\n"
while $go
do
	again=true
	while $again
	do
		if [ "$format" = true ]
		then echo "Formatting disk # $diskno ..." ; formatflop
		fi
		#check the disk data size
		SIZE=`iv -t /dev/rfp020 | grep "Partition 1"| cut -f3 -d=`
		if [ $SIZE -ne 316 -a $SIZE -ne 395 ]; then
			echo "WARNING: unknown disk size $SIZE, assuming 316"
			SIZE=316
		fi
		echo "Writing disk # $diskno (size $SIZE blocks)..."
		cpio -co < $tmp 2> /tmp/ccpio.$$2 | compress |
			dd of=/dev/rfp021 obs=1024 count=$SIZE 2>/dev/null
		echo "Reading back ..."
		# read back what we just put on the disk, to verify it and
		# to see what the last complete file was
		uncompress < /dev/rfp021 |
			cpio -cit 2>/dev/null > /tmp/ccpio.disk$diskno
		lastfile=`tail -1 /tmp/ccpio.disk$diskno`
		echo "Last file written: $lastfile"
		lineno=`grep -n "^$lastfile\$" < $tmp | sed -e 's/:.*//' `
		if [ "$lineno" = "" ]
		then
			#try the case of a ./ directory at the head
			lineno=`grep -n "^\./$lastfile\$" < $tmp | sed -e 's/:.*//' `
		fi
		if [ "$lineno" = "" ]
		then
			echo "Something went wrong!  Try writing again?  Press <RETURN>"
			choice=`line </dev/tty`
		else
			again=false
		fi
	done
	/etc/dismount -f
	sed -n -e "`expr $lineno + 1`,\$p" $tmp > /tmp/ccpio.$$x
	mv /tmp/ccpio.$$x $tmp
	if [ `cat $tmp | wc -l` -ne 0 ]
	then
		echo "`wc -l < /tmp/ccpio.disk$diskno` files written on disk $diskno, `wc -l < $tmp` files to go."
		diskno=`expr $diskno + 1`   
		echo $diskno > $tmpnum
		echo "\nTo continue - insert floppy disk #$diskno and press the <RETURN> key."
		choice=`line </dev/tty`
	else
		# we are done, the $tmp file is empty
		rm -f $tmp $tmpnum
		go=false
	fi
done
exit 0
-----cut here for unccpio---
#unccpio - recover compressed archives
if [ "$*" = "" ]
then echo "usage: unccpio {args}" ; exit 1
fi

cat /dev/fp021 | uncompress | cpio $*