cd into directory without having permission
@user812954's answer was quite helpful, except I had to do this this in two steps:
sudo sucd directoryThen, to exit out of "super user" mode, just type exit.
Enter super user mode, and cd into the directory that you are not permissioned to go into. Sudo requires administrator password.
sudo sucd directory
If it is a directory you own, grant yourself access to it:
chmod u+rx,go-w openfireThat grants you permission to use the directory and the files in it (x) and to list the files that are in it (r); it also denies group and others write permission on the directory, which is usually correct (though sometimes you may want to allow group to create files in your directory - but consider using the sticky bit on the directory if you do).
If it is someone else's directory, you'll probably need some help from the owner to change the permissions so that you can access it (or you'll need help from root to change the permissions for you).