From mboxrd@z Thu Jan 1 00:00:00 1970 From: dave@horsfall.org (Dave Horsfall) Date: Fri, 15 Jul 2016 08:36:56 +1000 (EST) Subject: [TUHS] Shell control through external commands In-Reply-To: References: <4fcf31ef-50af-10b5-0c34-ad647ed10a4e@aueb.gr> Message-ID: On Thu, 14 Jul 2016, Clem Cole wrote: > Could you be confusing the fact the true and false were implemented by > external commands in some early shell's And on the Mac and FreeBSD, they still are (as well as being builtins). At one time they were shell scripts e.g. "exit 0" for "true". -- Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer."