[Unix: from runcom files on the {CTSS} system 1962-63, via the
startup script /etc/rc] Script file containing startup instructions
for an application program (or an entire operating system), usually a
text file containing commands of the sort that might have been
invoked manually once the system was running but are to be executed
automatically each time the system starts up. See also {dot file},
{profile} (sense 1).
[glossary]
[Reference(s) to this entry by made by: {dot file}{profile}]