diff --git a/grep/0_Case_insensitive_search/code b/grep/0_Case_insensitive_search/code
index d561bd0..19e2a29 100644
--- a/grep/0_Case_insensitive_search/code
+++ b/grep/0_Case_insensitive_search/code
@@ -1 +1 @@
-grep -i "Jordan" $LLO_DATAFILE
\ No newline at end of file
+grep -i "Jordan" $LLO_DATAFILE
diff --git a/grep/0_Case_insensitive_search/info b/grep/0_Case_insensitive_search/info
index 21748bb..8f4dd71 100644
--- a/grep/0_Case_insensitive_search/info
+++ b/grep/0_Case_insensitive_search/info
@@ -1,5 +1,4 @@
-The *grep* filter searches a file for a particular _pattern_ of _characters_, and displays all lines that contain that pattern. 
-
-The pattern that is searched in the file is referred to as the *__regular expression__* (grep stands for globally search for regular expression and print out).
+The -i option enables to search for a string case insensitively in the give file. 
 
+It matches the words like “JORDAN”, “Jordan”, “jordan”.
  
diff --git a/grep/intro b/grep/intro
index 36afa37..2e6222b 100644
--- a/grep/intro
+++ b/grep/intro
@@ -1,2 +1,7 @@
 How to use "grep" command on Unix/Linux operating systems.
-Here you can find descriptions with simple examples of the "grep" command.
\ No newline at end of file
+Here you can find descriptions with simple examples of the "grep" command.
+
+The *grep* filter searches a file for a particular _pattern_ of _characters_, and displays all lines that contain that pattern.
+  
+The pattern that is searched in the file is referred to as the *__regular expression__* (grep stands for globally search for regular expression and print out).
+