en-US/about_bolt_targets.help.txt

targets
  A target is a device that Bolt connects to and runs actions on. Targets can
  be physical, such as servers, or virtual, such as containers or virtual
  machines.
   
  Several of Bolt's commands connect to targets and run actions on them.
  These commands require a target or targets to run on. You can specify
  targets to a command using one of the following command-line options:
   
  *nix options Powershell options
   -t, --targets TARGETS -T, -Targets TARGETS
   -q, --query QUERY -Q, -Query QUERY
       --rerun FILTER -Rerun FILTER
   
  The 'targets' option accepts a comma-separated list of target URIs or group
  names, or can read a target list from an input file '@<file>' or stdin '-'.
  URIs can be specified with the format [protocol://][user@]host[:port]. To
  learn more about available protocols and their defaults, run 'bolt guide
  transports'.
   
  Typically, targets and their configuration and data are listed in a
  project's inventory file. For more information about inventory files,
  see 'bolt guide inventory'.
 
Documentation
  https://pup.pt/bolt-commands