More on creating processes.

Author: janpgit

proc.tex

@@ -999,7 +999,10 @@
 \item However, in \texttt{bash}, all processes in a pipeline are direct children
 of the shell itself, i.e. \texttt{bash} calls \funnm{fork} that many times as is
 the number of programs in the pipeline.  Before the prompt is printed, it waits
-for all processes it directly created to finish.
+for all processes it directly created to finish.  Another advantage is that
+since a parent can get exit status for its direct children only, forking all
+processes in a pipeline makes it convenient to provide the \texttt{PIPESTATUS}
+array variable to the user.
 \end{itemize}
 
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