#!/bin/bash
#
TBXZ=$1
#
if [ -z ${TBXZ} ] ; then
  echo E: missing filename, it should end in .tar.xz
  exit 1
fi
if [ ! -f ${TBXZ} ] ; then
  echo E: ${TBXZ} is not a file
  exit 1
fi
case ${TBXZ} in
  *tar.xz)
    TB=$( basename ${TBXZ} .tar.xz )
  ;;
  *)
    echo E: ${TBXZ} does NOT end in .tar.xz
    exit 1
  ;;
esac
md5sum ${TBXZ}     >  ${TB}.sums
sha1sum ${TBXZ}   >>  ${TB}.sums
sha256sum ${TBXZ} >>  ${TB}.sums
# l l