From 1131add1067394bd85d651784cbfb1d6d48dda2d Mon Sep 17 00:00:00 2001
From: Ryan Barth <ryanucode@users.noreply.github.com>
Date: Sun, 16 Apr 2017 01:02:21 -0700
Subject: [PATCH] add exit trap trick (#45)

---
 README.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/README.md b/README.md
index 0ffa121..6eb29b3 100644
--- a/README.md
+++ b/README.md
@@ -1095,6 +1095,18 @@ source ~/.bashrc
 cd $hotellogs
 ```
 
+## Exit traps
+
+Make your bash scripts more robust by reliably performing cleanup.
+
+```bash
+function finish {
+  # your cleanup here. e.g. kill any forked processes
+  jobs -p | xargs kill
+}
+trap finish EXIT
+```
+
 # 4. Debugging
 You can easily debug the bash script by passing different options to `bash` command. For example `-n` will not run commands and check for syntax errors only. `-v` echo commands before running them. `-x` echo commands after command-line processing.