From 03d6555531ca2ceefc3a29daf8eedc1b3937ab1d Mon Sep 17 00:00:00 2001
From: jbranchaud <jbranchaud@gmail.com>
Date: Mon, 22 Jun 2015 08:22:11 -0500
Subject: [PATCH] Add Watch The Difference as a zsh til.

---
 README.md                   |  1 +
 zsh/watch-the-difference.md | 15 +++++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 zsh/watch-the-difference.md

diff --git a/README.md b/README.md
index a0f6ff7..5c4c9a4 100644
--- a/README.md
+++ b/README.md
@@ -159,6 +159,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Saying Yes](zsh/saying-yes.md)
 - [Search History](zsh/search-history.md)
 - [Switch Versions of a Brew Formula](zsh/switch-versions-of-a-brew-formula.md)
+- [Watch The Difference](zsh/watch-the-difference.md)
 - [Watch This Run Repeatedly](zsh/watch-this-run-repeatedly.md)
 - [Where Are The Binaries?](zsh/where-are-the-binaries.md)
 
diff --git a/zsh/watch-the-difference.md b/zsh/watch-the-difference.md
new file mode 100644
index 0000000..c0a192d
--- /dev/null
+++ b/zsh/watch-the-difference.md
@@ -0,0 +1,15 @@
+# Watch The Difference
+
+The `watch` command is a simple way to repeatedly run a particular command.
+I'll sometimes use it to monitor the response from some endpoint. `watch`
+can make monitoring responses even easier when the `-d` flag is employed.
+This flag instructs `watch` to highlight the parts of the output that are
+*different* from the previous run of the command.
+
+So if I run
+
+```
+$ watch -d curl -LIs localhost:3000
+```
+
+I can easily see if the http status of the request changes.