DOKK / manpages / debian 12 / daemontools / fghack.8.en
fghack(8) System Manager's Manual fghack(8)

fghack - is an anti-backgrounding tool.

fghack child

fghack runs child with many extra descriptors writing to a pipe. fghack reads and discards any data written to the pipe. After child has exited and the pipe has been closed, fghack exits.

supervise(8), svc(8), svok(8), svstat(8), svscanboot(8), svscan(8), readproctitle(8), pgrphack(8), multilog(8), tai64n(8), tai64nlocal(8), setuidgid(8), envuidgid(8), envdir(8), softlimit(8), setlock(8)

http://cr.yp.to/daemontools.html