From 8843c62e6dc0dd739477d925acca4af0a2450db4 Mon Sep 17 00:00:00 2001
From: Michael King <mtking1123@gmail.com>
Date: Wed, 2 Oct 2019 11:27:23 -0400
Subject: [PATCH] add the $0 special variable to bash.md

---
 bash.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bash.md b/bash.md
index 9aefd8c6a..3d82da184 100644
--- a/bash.md
+++ b/bash.md
@@ -393,7 +393,7 @@ Note that `[[` is actually a command/program that returns either `0` (true) or `
 if ping -c 1 google.com; then
   echo "It appears you have a working internet connection"
 fi
-```` 
+````
 
 ```bash
 if grep -q 'foo' ~/.bash_history; then
@@ -735,6 +735,7 @@ read -n 1 ans    # Just one character
 | `$?` | Exit status of last task |
 | `$!` | PID of last background task |
 | `$$` | PID of shell |
+| `$0` | Filename of the shell script |
 
 See [Special parameters](http://wiki.bash-hackers.org/syntax/shellvars#special_parameters_and_shell_variables).