Permission

Hello
Whenever we want to oen any type of file by name, we must have execute perm. in each
dir. mentioned in the name. I changed the dir permission using chmod to test the validity of this statement.
but i still can open the file
-------
any guides would be appreciable

Doublecheck your permissions.

~ $ mkdir asdf
~ $ touch asdf/file
~ $ chmod -x asdf
~ $ touch asdf/file
touch: cannot touch `asdf/file': Permission denied
~ $

Please check the parent directory permissions
if u have permissions on the file.