Hi...hope you all not bored with the question of password cracker, john the ripper

I have tried to use john the ripper to crack my own computer password by putting my own password to the "password.lst" file.

the reason to crack is of course i want to learn how it works and i hope this is not an illegal post as my intension is for knowledge only.

the result : i can retrieve my admin password successfully, but it cant retrieve other user password.

i have created one user under my computer and i purposely put that user's password and the admin's password to the "password.lst" file, but still it only retrieve the admin password.

my question is:
is there any special command to retrieve all the admin and the user password ?
I have seen the example allready, but still i cant retrieve it.

any comments will be much appreciated , thanksss