View app logs. npm/Git installations read pm2 logs; Docker installations read Docker container logs.
nb app logs [flags]
--env
-e
--tail
100
--follow
-f
--no-follow
nb app logs nb app logs --env app1 nb app logs --env app1 --tail 200 nb app logs --env app1 --no-follow
nb app start
nb app restart
nb db logs