krb.equiv contains zero or more lines, each of which describes a mapping of a kerberos principal (userid@host) to a local user (userid or alias). Each line of the file consists of two fields, separated by at least one whitespace character; other blanks are ignored. The first field is the kerberos principal name to remap, and the second is the name of the corresponding local user.
Sample file contents:
tyq4@ANDY.CMU.EDU tyq4 tyq4@DEANNA.ORG tyq4 ty347@ECE.CMU.EDU tyq4 jj12@ANDY.CMU.EDU tick tick@DEANNA.ORG tick jy9o@ANDY.CMU.EDU jyager jyager@CS.CMU.EDU jyager