checks for layout

certificates/essentials/lpi_essentials_lesson_02.md

@@ -79,6 +79,7 @@
 
 1. There is one command in the table above that doesn’t have a man page. Which one is it and why do you think that the command doesn’t have a man page?
 1. Using the commands in the table above, create the following file tree. The names that start with a capital are Directories and the ones in lower case are files.
+
 	```
 	User
 	├── Documents
@@ -112,6 +113,7 @@
 	* docs
 	* /
 1. Observe the following file structure. Note: Directories end with a slash (/) when tree is invoked with the -F option. You will need elevated privileges in order to run the tree command on the root (/) directory. The following is example output and is not indicative of a full directory structure. Use it to answer the following questions:
+
 	```
 	$ sudo tree -F /
 	
@@ -136,6 +138,7 @@
 	12 directories, 5 files
 	```
 	* A user enters the following commands:
+
 	```
 	$ cd /etc/udev
 	$ ls -a
@@ -148,6 +151,7 @@
 	* Your current location is /home/user/Documents/. Navigate to the directory named /etc/.
 	* Your current location is /etc/systemd/system/. Navigate to the directory named /home/user/.
 1. Consider the following commands:
+
 	```
 	$ pwd
 	/etc/udev/rules.d
@@ -160,6 +164,7 @@
 ## Explorational Exercises
 
 1. Suppose a user has entered the following commands:
+
 	```
 	$ mkdir "this is a test"
 	$ ls
@@ -175,6 +180,7 @@
 ## Guided Exercises
 
 1. Use the following file structure to answer the following three questions:
+
 	```
 	/
 	├── etc/
@@ -200,6 +206,7 @@
 	* What command can user enter to navigate into their Documents directory from /etc/udev? Use the shortest possible path.
 	* What command can user enter to navigate into michael 's Music directory? Use the shortest possible path.
 1. Consider the following output of ls -lh to answer the next two questions. Note that directories are indicated with a d at the beginning of the line.
+
 	```
 	drwxrwxrwx  5 eric eric  4.0K Apr 26  2011 China/
 	-rwxrwxrwx  1 eric eric  1.5M Jul 18  2011 img_0066.jpg
@@ -232,6 +239,7 @@
 ## Guided Exercises
 
 1. Given the following, select the directories that would be created by the command mkdir -p /tmp/outfiles/text/today /tmp/infiles/text/today
+
 	```
 	$ pwd
 	/tmp
@@ -252,6 +260,7 @@
 1. What happens when you use mv to move a directory into itself?
 1. How would you delete all files in your current directory that start with old?
 1. Which of the following files would log_[a-z]\_201?\_\*\_01.txt match?
+
 	```
 	log\_3\_2017_Jan_01.txt
 	log_+_2017_Feb_01.txt