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+# Commands
+```bash
+byobu
+
+imgname=`date +"%Y-%m-%d-%H%M-%S"`-grandfatherclock-pi4.img; xzname=$imgname.xz;  dadisk=/dev/sdb; webhook "starting copy $dadisk to $imgname $to xzname"; sudo dd if=$dadisk of=$imgname bs=4M status=progress; webhook "Copied the disk to $imgname, compressing to $xzname"; sudo pishrink.sh -v -Z -a $imgname $xzname; webhook "$imgname shrunk to $xzname, deleting $imgname" true; sudo rm -f $imgname; webhook "done!";
+```
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