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authorAndy Wingo <wingo@pobox.com>2017-02-28 16:22:42 +0100
committerAndy Wingo <wingo@pobox.com>2017-02-28 16:22:42 +0100
commitf3a1872703bf8b9b8f92bbdba01aa75927bd1b8f (patch)
tree87a89e781124f9e18e3c2c130961c350b426bc25 /doc/ref/scheme-scripts.texi
parent94d70684c19f8074baaec83ae2038898ad3e092f (diff)
downloadguile-f3a1872703bf8b9b8f92bbdba01aa75927bd1b8f.tar.gz
"Scripting Examples" update.
* doc/ref/scheme-scripts.texi (Scripting Examples): Mention system* and open-pipe.
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diff --git a/doc/ref/scheme-scripts.texi b/doc/ref/scheme-scripts.texi
index 7552dba33..296bea772 100644
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@@ -402,6 +402,17 @@ $ ./choose 50 100
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@end example
+Finally, seasoned scripters are probably missing a mention of
+subprocesses. In Bash, for example, most shell scripts run other
+programs like @code{sed} or the like to do the actual work.
+
+In Guile it's often possible get everything done within Guile itself, so
+do give that a try first. But if you just need to run a program and
+wait for it to finish, use @code{system*}. If you need to run a
+sub-program and capture its output, or give it input, use
+@code{open-pipe}. @xref{Processes}, and @xref{Pipes}, for more
+information.
+
@c Local Variables:
@c TeX-master: "guile.texi"