On Mon, Jun 27, 2022 at 11:20:45AM -0400, Matt Barry wrote: > The simplest way I can think of to solve this is: > > (start) > mkdir /tmp/adduser.lock > sleep and loop until mkdir succeeds > > (end) > remove /tmp/adduser.lock > > which should be atomic assuming a local /tmp. > > One could possibly add a /tmp/adduser.lock/adduser.pid and check for a > dead lock.. I hesitate to overcomplicate this one (and certainly don't > want a dependency for it).
/run/adduser please, and probably a simple flock()? lock files in a shell script are a minefield for code running as root, I hope it is easier in perl. Greetings Marc -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Leimen, Germany | lose things." Winona Ryder | Fon: *49 6224 1600402 Nordisch by Nature | How to make an American Quilt | Fax: *49 6224 1600421
