On Wed, Aug 24, 2016 at 02:52:01PM -0400, Adam Danischewski wrote: > When a parent script kicks off a child process, and the child process reads > from fd0 I don't expect the child to be capable of manipulating the parents > pipe data on fd0. An error potentially but not quietly eating up the > parents fd0 pipe data. This seems to be violating a basic tenet.
Children inherit their parents' standard input. This kind of contention between processes for the input happens *all the time* if you don't carefully avoid it. http://mywiki.wooledge.org/BashFAQ/089 gives some examples, and some workarounds.
