how to split a backup file

$ split ?-bytes=600M fagotto.tar.gz fagottini

First we provide to compress files that interest us with

tar -cvvzf fagotto.tar.gz /percorso/dovestanno/ifile/

and then divided into "slices" of 600 Mb each with

split ?-bytes=600M fagotto.tar.gz fagottini

To split huge file into DVD+R size chunks for burning

split -b 4700000000 file.img.gz file.img.gz

To reconstitute use

cat file.img.gz.aa file.img.gz.ab ... > file.img.gz

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by David Winterbottom (codeinthehole.com)

Tags: bash cmd Commands shell scripts