On 1/20/06, Paul Howarth <paul@xxxxxxxxxxxx> wrote: > If the directory is group-writable, any member of the group can achieve > the same result by doing: > > $ cp junk junk.new > $ rm junk > $ mv junk.new junk Learn something new every day. From the chmod manpage: When the sticky bit is set on a directory, files in that directory may be unlinked or renamed only by root or their owner. Without the sticky bit, anyone able to write to the directory can delete or rename files.