Update find.md

pages/common/find.md

@@ -6,6 +6,10 @@
 
 `find {{root_path}} -name {{'*.py'}}`
 
+- run a command for each file, use {} within the command to access the filename
+
+`find {{root_path}} -name {{'*.py'}} -exec {{wc -l {} }}\;`
+
 - find files modified since a certain time
 
 `find {{root_path}} -name {{'*.py'}} -mtime {{-1d}}`