setpgrp(2)

NAME

     setpgrp - set process group ID

SYNOPSIS

     #include <sys/types.h>
     #include <unistd.h>

     pid_t setpgrp(void);

DESCRIPTION

     If the calling process is not already a session leader,  the
     setpgrp() function makes it one by setting its process group
     ID and session ID to  the  value  of  its  process  ID,  and
     releases  its  controlling  terminal.  See intro(2) for more
     information on process group IDs and session leaders.

RETURN VALUES

     The setpgrp() function returns the value of the new  process
     group ID.

SEE ALSO

     setpgrp(1),  intro(2),  exec(2),  fork(2),  getpid(2),  get-
     sid(2), kill(2), signal(3C)