Multi-Part Backup Scripts

#!/bin/bash

source=/usr/lib

dest=~/test

filespec=usr-lib-split.tar.xz.part.

filesize=1M

threads=2

cwd=$(pwd)

[ ! -d $dest ] && mkdir -p $dest

[ ! -d $dest ] && exit 1

cd $source

tar cv * | xz --stdout --threads=$threads | split -b $filesize - ${dest}/${filespec}

cd $cwd

#!/bin/bash

source=~/test

dest=~/restore

filespec=usr-lib-split.tar.xz.part.

cwd=$(pwd)

[ ! -d $dest ] && mkdir -p dest

cd $dest || exit 1

cat ${source}/${filespec}* | unxz | tar xv

cd $cwd