4.3BSD-Reno/share/man/cat1/nohup.0

NOHUP(1)		    UNIX Reference Manual		      NOHUP(1)

NNAAMMEE
     nnoohhuupp - invoke a command immune to hangups

SSYYNNOOPPSSIISS
     nnoohhuupp _c_o_m_m_a_n_d [_a_r_g ...]

DDEESSCCRRIIPPTTIIOONN
     The nnoohhuupp utility invokes _c_o_m_m_a_n_d with its arguments and at this time
     sets the signal SIGHUP to be ignored. The signal SIGQUIT may also be set
     to be ignored.  If the standard output is a terminal, the standard output
     is appended to the file _n_o_h_u_p._o_u_t in the current directory.  If standard
     error is a terminal, it is directed to the same place as the standard
     output.

     NNoohhuupp exits 1 if an error occurs, otherwise the exit status is that of
     _c_o_m_m_a_n_d.

EENNVVIIRROONNMMEENNTT
     The following variable is utilized by nnoohhuupp.

     HOME      If the output file _n_o_h_u_p._o_u_t cannot be created in the current
	       directory, the nnoohhuupp utility uses the directory named by HOME
	       to create the file.

SSEEEE AALLSSOO
     signal(3)

SSTTAANNDDAARRDDSS
     The nohup function is expected to be POSIX 1003.2 compatible.