<para>
Execute a shell command under a global lock. This might be useful to define the
-order in which serveral shell commands will be executed. The locking information
+order in which several shell commands will be executed. The locking information
is stored in a file called <filename>g_lock.tdb</filename>. In setups with CTDB
running, the locking information will be available on all cluster nodes.
</para>