diff --git a/4_unix_file_system.md b/4_unix_file_system.md
index 8959d2dd19a1041a945eca95ff33c6e99166544f..9df282f94fc5c408973127c96f664ebe2113b27c 100644
--- a/4_unix_file_system.md
+++ b/4_unix_file_system.md
@@ -132,7 +132,7 @@ One of the columns of the command `ls -l` show the size of the files. Try is on
 
 What are the sizes of the files in the `/proc` folder ?
 
-From the `cpuinfo` files get the brand of the cpu simulated by your VM.
+From the `cpuinfo` file get the brand of the cpu simulated by your VM.
 
 From the `meminfo` file retrieve the total size of RAM
 
@@ -204,7 +204,7 @@ Each media is divided into partition:
 
 ![partitions](./img/partition.png)
 
-The media is divided into one or many partition, which each have a file system type. Examples of file system type are:
+The media is divided into one or many partition, each of which have a file system type. Examples of file system type are:
 
 - fat32, exFAT
 - ext3, ext4