Add back evalution order. Added history substitution to gitbook and fixed breadcrumb links.

Author: jbelmont

README.md

@@ -20,6 +20,7 @@ A workshop on Unix Programming Principles using tools such as grep, sed, awk, sh
 * [Input and Output](docs/input-and-output.md)
 * [Command Process Substitution](docs/command-process-substitution.md)
 * [History Substitution](docs/history-substitution.md)
+* [Evaluation Order](docs/evaluation-order.md)
 * [Subshells](docs/subshells.md)
 * [Shell Functions](docs/shell-functions.md)
 * [Signal Handling](docs/signal-handling.md)

SUMMARY.md

@@ -13,6 +13,7 @@
 * [Looping](docs/looping.md)
 * [Input and Output](docs/input-and-output.md)
 * [Command Process Substitution](docs/command-process-substitution.md)
+* [History Substitution](docs/history-substitution.md)
 * [Evaluation Order](docs/evaluation-order.md)
 * [Subshells](docs/subshells.md)
 * [Shell Functions](docs/shell-functions.md)

docs/evaluation-order.md

@@ -0,0 +1,14 @@
+## Unix Programming and Regular Expressions Workshop - Evaluation Order
+
+## Sections:
+
+* [Bread Crumb Navigation](#bread-crumb-navigation)
+
+Content
+
+#### Bread Crumb Navigation
+_________________________
+
+Previous | Next
+:------- | ---:
+← [History Substitution](./history-substitution.md) | [Subshells](./subshells.md) →

docs/history-substitution.md

@@ -114,4 +114,4 @@ _________________________
 
 Previous | Next
 :------- | ---:
-← [Command Process Substitution](./command-process-substitution.md) | [Subshells](./subshells.md) →
+← [Command Process Substitution](./command-process-substitution.md) | [Evaluation Order](./evaluation-order.md) →

docs/subshells.md

@@ -79,4 +79,4 @@ _________________________
 
 Previous | Next
 :------- | ---:
-← [History Substitution](./history-substitution.md) | [Shell Functions](./shell-functions.md) →
+← [Evaluation Order](./evaluation-order.md) | [Shell Functions](./shell-functions.md) →