From 69f50888f42f52897fbd3949355d4f7026262ce0 Mon Sep 17 00:00:00 2001
From: Edson Ticona <xcr33d@gmail.com>
Date: Sun, 20 Jan 2019 13:18:13 +0100
Subject: [PATCH 1/2] Adds associative array usage

---
 bash.md | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/bash.md b/bash.md
index 1e0d546e6..0a6adabda 100644
--- a/bash.md
+++ b/bash.md
@@ -464,6 +464,42 @@ for i in "${arrayName[@]}"; do
 done
 ```
 
+Dictionaries (Associative Arrays)
+--------------------------------
+
+### Defining
+
+```bash
+declare -A sounds
+```
+
+```bash
+sounds[dog]="bark"
+sounds[cow]="moo"
+sounds[bird]="tweet"
+sounds[wolf]="howl"
+```
+
+### Working with dictionaries
+
+```bash
+echo ${sounds[dog]}                     # Dog's sound
+echo ${sounds[@]}                       # All the values
+echo ${!sounds[@]}                      # All the keys
+echo ${#sounds[@]}                      # Number of elements
+unset sounds[dog]                       # Delete dog
+```
+
+### Iteration
+```bash
+for i in "${sounds[@]}"; do             # Iterate over values
+  echo $i
+done
+for i in "${!sounds[@]}"; do             # Iterate over keys
+  echo $i
+done
+```
+
 Options
 -------
 

From 8ea2be47310c733cedad48f7aad65d36acda89e9 Mon Sep 17 00:00:00 2001
From: "Rico Sta. Cruz" <rstacruz@users.noreply.github.com>
Date: Sat, 23 Mar 2019 22:26:44 +0800
Subject: [PATCH 2/2] Update formatting

---
 bash.md | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

diff --git a/bash.md b/bash.md
index 0a6adabda..9d1dda6d2 100644
--- a/bash.md
+++ b/bash.md
@@ -464,8 +464,9 @@ for i in "${arrayName[@]}"; do
 done
 ```
 
-Dictionaries (Associative Arrays)
---------------------------------
+Dictionaries
+------------
+{: .-three-column}
 
 ### Defining
 
@@ -480,23 +481,33 @@ sounds[bird]="tweet"
 sounds[wolf]="howl"
 ```
 
+Declares `sound` as a Dictionary object (aka associative array).
+
 ### Working with dictionaries
 
 ```bash
-echo ${sounds[dog]}                     # Dog's sound
-echo ${sounds[@]}                       # All the values
-echo ${!sounds[@]}                      # All the keys
-echo ${#sounds[@]}                      # Number of elements
-unset sounds[dog]                       # Delete dog
+echo ${sounds[dog]} # Dog's sound
+echo ${sounds[@]}   # All values
+echo ${!sounds[@]}  # All keys
+echo ${#sounds[@]}  # Number of elements
+unset sounds[dog]   # Delete dog
 ```
 
 ### Iteration
+
+#### Iterate over values
+
 ```bash
-for i in "${sounds[@]}"; do             # Iterate over values
-  echo $i
+for val in "${sounds[@]}"; do
+  echo $val
 done
-for i in "${!sounds[@]}"; do             # Iterate over keys
-  echo $i
+```
+
+#### Iterate over keys
+
+```bash
+for key in "${!sounds[@]}"; do
+  echo $key
 done
 ```