From mboxrd@z Thu Jan  1 00:00:00 1970
From: jnc@mercury.lcs.mit.edu (Noel Chiappa)
Date: Tue,  6 Mar 2018 13:11:27 -0500 (EST)
Subject: [TUHS] Sleep()y musings
Message-ID: <20180306181127.2B21718C0D8@mercury.lcs.mit.edu>

    > From: Dave Horsfall

    > When did sleep(2) become sleep(3)?  Was it V7, or some BSD?

Before V7. The MIT system (~PWB1) says, on the man page for sleep (II), "As of
this writing the system call is still available although the C routine
implmeneting the function uses 'alarm' and 'pause' (II). It will be withdrawn
when convenient."

Probably left the system call there for compiled commands, etc which used it?

	 Noel