</refmeta>
<refnamediv id='name'>
<refname>semex </refname>
-<refpurpose> exerciser for System V semaphore operations</refpurpose>
+<refpurpose> exerciser for POSIX semaphore operations</refpurpose>
</refnamediv>
<refsynopsisdiv id='synopsis'>
<citerefentry><refentrytitle>semget</refentrytitle><manvolnum>2</manvolnum></citerefentry>
and
<citerefentry><refentrytitle>semop</refentrytitle><manvolnum>2</manvolnum></citerefentry>
-system calls of System V UNIX. You can use it to experiment with the
-semaphore features in order to understand them better. It includes
-on-line help.</para>
+system calls of POSIX-conforming Unixes. You can use it to experiment
+with the semaphore features in order to understand them better. It may
+also be useful for scripts which must act concurrently. It includes
+embedded help.</para>
<para>Calls that might cause <command>semex</command> to block
(<citerefentry><refentrytitle>semop</refentrytitle><manvolnum>2</manvolnum></citerefentry>
</refsect1>
<refsect1 id='bugs'><title>BUGS</title>
-<para>The 'p' and 'v' commands are not Dyskstra's P and V operations.</para>
+<para>The 'p' and 'v' commands are not Dijkstra's P and V operations.</para>
<para>There is no way for <command>semex</command> to specify more
than one semaphore op at once in
<para>Eric S. Raymond <email>esr@snark.thyrsus.com</email>. You may
find updates and related resources at <ulink
-url='http://www.catb.org/~esr/'>http://www.catb.org/~esr/</ulink>.</para>
+url='http://www.catb.org/~esr/'>http://www.catb.org/~esr/semex</ulink>.</para>
</refsect1>
</refentry>