On Sun, Nov 27, 2005 at 11:57:29PM +0100, Marco d'Itri wrote: > found 341040 0.060-1 > thanks > > On Nov 27, Lionel Elie Mamane <[EMAIL PROTECTED]> wrote: > > > Preparing to replace udev 0.056-2 (using > > .../archives/udev_0.076-2_i386.deb) ... > > ln: creating symbolic link `/etc/udev/rules.d/z20_persistent.rules' to > > `../persistent.rules': File exist > > dpkg: error processing /var/cache/apt/archives/udev_0.076-2_i386.deb > > (--unpack): > > subprocess pre-installation script returned error exit status 1 > I am not sure about what causes this bug, the script checks if the link > exists before creating it: > > [ -e /etc/udev/rules.d/z20_persistent.rules ] || \ > ln -s ../persistent.rules /etc/udev/rules.d/z20_persistent.rules >
When foo exists and is a symlink, "[ -e foo ]" evaluates to "true" (0) if and only the file being linked _to_ exists. You want to use -L or -h for symlinks that may be dangling. (The full test should probably be [ -e /etc/udev/rules.d/z20_persistent.rules ] || [ -h /etc/udev/rules.d/z20_persistent.rules ] to cover both cases where the file exists and is a symlink and when it is not. -L and -h seem not to be in SUSv2, but are in SUSv3 (and work in dash). (Not sure about POSIX.) -- Lionel -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
