logout - remove an entry from the utmp file
Library Synopsis Description Return Values See Also Bugs
.In sys/types.h .In libutil.h int logout "const char *line"
The function logout searches the utmp(5) file for the slot described by line (usually a tty name). If such a slot could be found, it will be updated with a record where the name and host fields are empty, and the time stamp field is updated to the current time.
The logout function returns 1 if the slot described by line has been found and updated, 0 otherwise.
login(3), utmp(5), wtmp(5)