log

View, export, and configure logging systems. More information: https://keith.github.io/xcode-man-pages/log.1.html.

Stream live system logs:

log stream

Stream logs sent to syslog from the process with a specific PID:

log stream --process {{process_id}}

Show logs sent to syslog from a process with a specific name:

log show --predicate "process == '{{process_name}}'"

Export all logs to disk for the past hour:

sudo log collect --last {{1h}} --output {{path/to/file.logarchive}}