From e239a68c4b4a2345df08b37b662a927c7f7cf44f Mon Sep 17 00:00:00 2001
From: Michael Marsh <mmarsh@cs.umd.edu>
Date: Fri, 6 Jul 2018 10:05:56 -0400
Subject: [PATCH] added ; && and ||

---
 bash.pdf | Bin 137824 -> 137968 bytes
 bash.txt |  11 +++++++++++
 2 files changed, 11 insertions(+)

diff --git a/bash.pdf b/bash.pdf
index 322ffe69b9329623d848e14fdfd8695525b26d29..a0168b86eb329e5ebf22c51bd1c915b1c32162ef 100644
GIT binary patch
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diff --git a/bash.txt b/bash.txt
index 9ee29e1..2b6e6bc 100644
--- a/bash.txt
+++ b/bash.txt
@@ -314,6 +314,17 @@ other things we've seen:
 Control Flow
 ------------
 
+The simplest form of control flow uses boolean operators to combine
+commands
+
+| *Combination* | *Execution*                                      |
+| ------------- | -----------                                      |
+| `foo ; bar`   | Execute `foo`, then execute `bar`                |
+| `foo && bar`  | Execute `foo`; if successful execute `bar`       |
+| `foo || bar`  | Execute `foo`; if *not* successful execute `bar` |
+
+The return status is always the status of the last command executed.
+
 Bash has an if/then/elif/else/fi construction. The minimal version is
 if/then/fi, as in:
 
-- 
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