diff --git a/xargs b/xargs
index b4a3ace..10eaa42 100644
--- a/xargs
+++ b/xargs
@@ -1,8 +1,16 @@
-# To Find all file name ending with .pdf and remove them
-find -name *.pdf | xargs rm -rf
+---
+syntax: bash
+---
 
-# if file name contains spaces you should use this instead
-find -name *.pdf | xargs -I{} rm -rf '{}'
+# Find all files whose names end with .pdf and remove them:
+find -type f -name '*.pdf' | xargs rm -f
+
+# If file names contain special characters, you should use this instead.
+# Special characters include spaces, quotes, parenthesis, unicode, etc:
+find -type f -name '*.pdf' -print0  | xargs --null rm -f
+
+# Run 4 `rm` commands in parallel
+find -name '*.pdf' | xargs --max-procs=4 rm -f
 
 # Will show every .pdf like:
 #	&toto.pdf=