Jeff Woods wrote:
> At 12/9/2004 07:09 PM +0000, Glynn Clements wrote:
> >Jeff Woods wrote:
> >>> for file in prefix-* ; do
> >>> mv "$file" "${file##prefix-}"
> >>> done
>
> >>What happens if one of the files is named "prefix-prefix-1"?
> >
> >It gets renamed to prefix-1, which is what I would expect.
>
> No. Because you used two of "##" it removes all instances of "prefix1"
> from the front of the variable and the resulting filename would be "1".
Not here:
$ file=prefix-prefix-1
$ echo "${file##prefix-}"
prefix-1
AFAICT, the difference between # and ## (shortest/longest match) is
only relevant if the pattern contains wildcards, not for fixed
strings.
> >>What about "prefix-"?
> >>
> >>I suggest:
> >>
> >>for file in prefix-?*
> >>do
> >>mv "$file" "${file#prefix-}"
> >>done
> >
> >Huh?
>
> I added "?" to the pattern so that a file with the exact name "prefix-"
> would not be selected since that would result in a modified filename that
> was an empty string.
OK.
--
Glynn Clements <glynn@xxxxxxxxxxxxxxxxxx>
-
: send the line "unsubscribe linux-admin" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
