답변:
해당 서비스의 마지막 종료 코드입니다.
launchctl
매뉴얼 페이지를 설명합니다.
list [-x] [label]
With no arguments, list all of the jobs loaded into launchd in
three columns. The first column displays the PID of the job if
it is running. The second column displays the last exit status
of the job. If the number in this column is negative, it repre-
sents the negative of the signal which killed the job. Thus,
"-15" would indicate that the job was terminated with SIGTERM.
The third column is the job's label.