command interpreter (shell)

-c               Read commands from the command_string operand instead of from the standard input.
                 Special parameter 0 will be set from the command_name operand and the positional
                 parameters ($1, $2, etc.)  set from the remaining argument operands.

If a command is terminated by the control operator &, the shell executes the command in the background in
a subshell.  The shell does not wait for the command to finish, and the return  status  is  0.

display status of jobs in the current session