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\chapter{Command-line access and exit values}
\label{programlibchapter}
The procedures described in this section are exported by the
\defrsixlibrary{programs} library.
\begin{entry}{%
\proto{command-line}{}{procedure}}
Returns a nonempty list of strings.
The first element is an implementation-specific
name for the running top-level program. The remaining elements are command-line
arguments according to the operating system's conventions.
\end{entry}
\begin{entry}{%
\proto{exit}{}{procedure}
\rproto{exit}{ obj}{procedure}}
Exits the running program and communicates an exit value to the
operating system. If no argument is supplied, the {\cf exit}
procedure should communicate to the operating system that the program
exited normally. If an argument is supplied, the {\cf exit} procedure
should translate the argument into an appropriate exit value for the
operating system. If \var{obj} is \schfalse{}, the exit is assumed to
be abnormal.
\end{entry}
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