WTMP ist nicht lesbar
# To open wtmp file and view it’s content use blow command
last -f /var/log/wtmp
#To see still logged in users view utmp file use last command
last -f /var/run/utmp
# To view btmp file use same command
last -f /var/log/btmp
# Sample output of last -f wtmp command output.
Salo Hopeless