Adding example for each option with prep_env

bash_array_jobs/README.md

@@ -14,13 +14,40 @@ The most basic method would be to create a [SLURM](https://docs.uabgrid.uab.edu/
 # Content #
 
 * **prep_env**:  
-An executable to create test environment to run the job scripts on.
+An executable to create test environment to run the job scripts on, along with job error and job output directories.
 
 	Usage: ./prep_env {seq,rand.diff}
 
 	seq: Create a test_dir with sequential file names.  
+		Example:  
+			└── test_dir
+			    ├── test1
+			    ├── test2
+			    ├── test3
+			    ├── test4
+			    └── test5   
 	rand: Create a test_dir with random file names.  
-	diff: Create a test_dir with random sub-directory names, and a file 'test' in each directory.
+		Example:
+			└── test_dir
+			    ├── CU4KT7
+			    ├── GEJ0IF
+			    ├── LHZBSN
+			    ├── MYODBC
+			    └── X9E4T5  
+
+	diff: Create a test_dir with random sub-directory names, and a file 'test' in each directory.  
+		Example:
+			└── test_dir
+			    ├── 1DOVW8
+			    │   └── test
+			    ├── 75DJ90
+			    │   └── test
+			    ├── 7CWD36
+			    │   └── test
+			    ├── FTG47D
+			    │   └── test
+			    └── L9D3C4
+			        └── test
 
 
 * **clean_env**:  
@@ -39,5 +66,4 @@ This is a [SLURM](https://docs.uabgrid.uab.edu/wiki/Slurm) Array batch script, w
 This is a [SLURM](https://docs.uabgrid.uab.edu/wiki/Slurm) Array batch script, which works when the names of input files are in random form.
 
 
-# BASH scripting #