get a file (filelst for example) with all the files you need to save :
control files
init file
datafiles
redo logs
any other file you need
then here is a skeleton of script to save your files (note : you can add log functionnalities, etc ...) :

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# configure to match your device if DAT or DLT
BKUPDEVICE=/dev/rmt/0mn

cat filelst | while read FILENAME
do
LISTSVG="$LISTSVG $FILENAME"
done

find $LISTSVG | cpio -oxcvB > $BKUPDEVICE
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