On Tue, Oct 30, 2012 at 10:46:29AM +0100, Uwe Kleine-König wrote:
> > -eval "set -- $(getopt -n "$0" -- "f:j:s:" "$@")"
> > +if [ -z "${DEBIAN_KERNEL_DISABLE_DEBUG+set}" ]; then
> I don't know that construct, only :+, but + seems to do the same without
> me finding it in the manpage of neither bash nor dash.In the bash(1) manpage, in the "Parameter Expansion" section, it says: When not performing substring expansion, using the forms documented below, bash tests for a parameter that is unset or null. Omitting the colon results in a test only for a parameter that is unset. Oh, OK, so my earlier suggestion of replacing this with just if [ -z "$DEBIAN_KERNEL_DISABLE_DEBUG" ]; then is incorrect: the above test will leave the value of DEBIAN_KERNEL_DISABLE_DEBUG alone if it is set (even if it is set to null), but will set it to "yes, ..." if it is unset. Julian -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20121030095446.gd32...@d-and-j.net
