OpenBSD upgrade

uprel.sh

#!/bin/sh
v=63
dotv=6.3
url=ftp://openbsd.cs.toronto.edu/pub/OpenBSD/
files='{man*tgz,comp*tgz,base*tgz,bsd*,INS*,SHA256.sig}'
vfiles='{man*tgz,comp*tgz,base*tgz,bsd*,INS*}'

mkdir $v
cd $v

ftp -Via $url/${dotv}/`uname -m`/${files}

signify -C -p /etc/signify/openbsd-${v}-base.pub -x SHA256.sig $vfiles
if [ $? -eq 0 ]; then
  doas mv bsd.rd /
  echo new bsd.rd installed
else
  echo signify failed - leaving it dirty
fi