Usage: parallel [options] <script1> <script2> ...

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.
         --cmd cmd             Executable file/command.
         --workers num         Number of workers.
         --concurrency num     Number of scripts to run concurrently.
         --ordered             Preserve order of script output.
         --uid uid             Process user identity.
         --gid gid             Process group identity.
         --maxbuffer size      Max buffer size for stdout and stderr.