diff --git a/bash_array_jobs/README.md b/bash_array_jobs/README.md
index c22e91fe5c9f12f06343d15d4b48c1fc03c8ce96..da15deebee2ab4e99c227ae6a9a9695872b4b623 100644
--- a/bash_array_jobs/README.md
+++ b/bash_array_jobs/README.md
@@ -1,4 +1,23 @@
 # Content #
 
- * prep_env
-This is a utility executable which would 
+* prep_env: 
+
+An executable to create test environment to run the job scripts on.
+
+Usage: ./prep_env {seq,rand.diff}
+
+seq: Create a test_dir with sequential file names.
+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.
+
+
+* clean_env:
+
+An executable to remove all the files/directories from your current directory, except the ones originally present.
+
+Usage: ./clean_env
+
+
+* bash_parallel_script:
+
+