The klist utility prints the name of the credentials cache, the identity of the principal that the tickets are for (as listed in the ticket file), and the principal names of all Kerberos tickets currently held by the user, along with the issue and expiration time for each authenticator. Principal names are listed
in the form name/instance@realm, with the '/' omitted if the instance is not included, and the '@' omitted if the realm is not included.
If cache_file or keytab_name is not specified, klist will display the credentials in the default credentials cache or keytab files as appropriate. By default, your ticket will be stored in the file /tmp/krb5cc_uid, where uid is the current user-ID of the user.