It is show log, granted it is not a running view like term mon. You can also use pipe to filter results.
(WLC-1) #show log ?
all Show full logs
ap-debug AP Debug Logs
arm ARM logs
arm-user-debug ARM User Debug Logs
errorlog Logging for System errors or critical information
network Network logs
security Security logs
system System logs
user User logs
user-debug User Debug Logs
wireless Wireless logs