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authorgbmor <ben@gbmor.dev>2019-09-14 15:22:58 -0400
committergbmor <ben@gbmor.dev>2019-09-14 15:22:58 -0400
commit590174feb82150b854dd7d462420d40fc7ecbdc9 (patch)
treec3935dcc17ac2e19b3d8bb893b05b95dc535836f /pages
parent3342ab601f9f5b63a6dfd36f4a1e2f5e862d8fcd (diff)
downloadwiki-590174feb82150b854dd7d462420d40fc7ecbdc9.tar.gz
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+<!--
+title: pp(1)
+description: Introduction to pp(1)
+author: ahriman / gbmor
+-->
+
+# pp(1)
+
+`pp(1)` is a shell preprocessor developed by our own user [adi](https://adi.tilde.institute).
+It allows one to embed shell into any text file between instances of the token `#!`. This powerful
+tool allows the dynamic generation of static pages using standard bourne shell.
+
+For example:
+```
+<!doctype html>
+<title>pp(1) example</title>
+<ul>
+#!
+i=1
+while test $i -le 10
+do
+if test $((i % 2)) -eq 0
+then
+#!
+	<li class=even>$i</li>
+#!
+else
+#!
+	<li class=odd>$i</li>
+#!
+fi
+i=$((i + 1))
+done
+#!
+</ul>
+```
+Will output, per the manual page:
+```
+<!doctype html>
+<title>pp(1) example</title>
+<ul>
+        <li class=odd>1</li>
+        <li class=even>2</li>
+        <li class=odd>3</li>
+        <li class=even>4</li>
+        <li class=odd>5</li>
+        <li class=even>6</li>
+        <li class=odd>7</li>
+        <li class=even>8</li>
+        <li class=odd>9</li>
+        <li class=even>10</li>
+</ul>
+```
+
+The manpage includes more information on advanced features, such as piping `stdin` and debugging.
+
+## Notes
+* Full Guide: [adi.tilde.institute/pp](https://adi.tilde.institute/pp)
+
+[back](/)