Paul Eggert wrote:
> > + ln -f "$file" "$file~" 2>/dev/null || cp -f "$file" "$file~" || {
>
> This will be problematic if the destination already exists, as the
> resulting permissions etc. may not be what the user intend. How about if
> we fall back on "mv -f" instead? Although this has the disadvantage of
> having a small window where "$file" does not exist, I think that's
> preferable to the disadvantage of using "cp".
How about
ln -f "$file" "$file~" 2>/dev/null || { rm -f "$file~" && cp "$file"
"$file~"; } || {
then? It fixes the problem "if the destination already exists", and does
NOT leave a window where "$file" does not exist.
Bruno
