If the current process is not already a session leader, the setpgrp utility sets the process group ID and
session ID to the current process ID
and does an exec() of command
and its argument(s), if any.
OPERANDS
The following operands are supported:
command
The name of a command to be invoked.
arg
An option or argument to command.
EXIT STATUS
The following exit values are returned:
1
Error executing the setpgrp utility or
during exec() of command.
Otherwise, the exit status will be that of command.
ATTRIBUTES
See attributes(5)
for descriptions of the following attributes: