$ ctr tasks start -h
NAME:
   ctr tasks start - start a container that has been created

USAGE:
   ctr tasks start [command options] CONTAINER

OPTIONS:
   --null-io         send all IO to /dev/null
   --log-uri value   log uri
   --fifo-dir value  directory used for storing IO FIFOs
   --pid-file value  file path to write the task's pid
   --detach, -d      detach from the task after it has started execution

$ ctr tasks start -h
NAME:
   ctr tasks start - start a container that has been created

USAGE:
   ctr tasks start [command options] CONTAINER

OPTIONS:
   --no-pivot        disable use of pivot-root (linux only)
   --null-io         send all IO to /dev/null
   --log-uri value   log uri
   --fifo-dir value  directory used for storing IO FIFOs
   --pid-file value  file path to write the task's pid
   --detach, -d      detach from the task after it has started execution