Moved du back seperate pages for linux/osx because GNU has --max-depth, BSD has -d

Edited the examples to always explicitly specify unit as previous examples allowed return of block units which is probably not what your average user wants.

common/du.md

@@ -1,19 +0,0 @@
-# du
-
-> Estimate file space usage
-
-- get file sizes of directory's content
-
-`du {{file/directory}}`
-
-- get total size in human readable form
-
-`du -sh {{file/directory}}`
-
-- get recursively, individual file/folder sizes in human readable form
-
-`du -ah {{directory}}`
-
-- get file sizes till a specified depth
-
-`du --max-depth=1`

linux/du.md

@@ -0,0 +1,19 @@
+# du
+
+> Estimate file space usage
+
+- get a sum of the total size of a file/folder in human readable units
+
+`du -sh {{file/directory}}`
+
+- list file sizes of a directory and any subdirectories in KB
+
+`du -k {{file/directory}}`
+
+- get recursively, individual file/folder sizes in human readable form
+
+`du -ah {{directory}}`
+
+- list the KB sizes of directories for N levels below the specified directory 
+
+`du --max-depth=1`

osx/du.md

@@ -0,0 +1,19 @@
+# du
+
+> Estimate file space usage
+
+- get a sum of the total size of a file/folder in human readable units
+
+`du -sh {{file/directory}}`
+
+- list file sizes of a directory and any subdirectories in KB
+
+`du -k {{file/directory}}`
+
+- get recursively, individual file/folder sizes in human readable form
+
+`du -ah {{directory}}`
+
+- list the KB sizes of directories for N levels below the specified directory 
+
+`du -k -depth=1 {{directory}}`