f=/run/user/1000/ziva-tmp.jpg
-mkdir -p $dest_dir
+install -g 1000 -o 1000 -m 700 $dest_dir
cd $dest_dir
shopt -s nullglob
jpgs=( 20*jpg )
if (( ${#jpgs[@]} >= 1 )); then
- # shellcheck disable=SC2048 # intentional
+ # shellcheck disable=SC2012 # this is much sorter than find|sort
lastf=$(ls -1 20*jpg | tail -n1)
fi