1.\" Copyright (c) 1989, 1990 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" %sccs.include.redist.man% 5.\" 6.\" @(#)nohup.1 6.5 (Berkeley) 07/24/90 7.\" 8.Dd 9.Dt NOHUP 1 10.Sh NAME 11.Nm nohup 12.Nd invoke a command immune to hangups 13.Sh SYNOPSIS 14.Nm nohup 15.Ar command 16.Op Ar arg ... 17.Sh DESCRIPTION 18The 19.Nm nohup 20utility invokes 21.Ar command 22with 23its arguments 24and at this time sets the signal SIGHUP 25to be ignored. The signal SIGQUIT may also be set 26to be ignored. 27If the standard output is a terminal, the standard output is 28appended to the file 29.Pa nohup.out 30in the current directory. 31If standard error is a terminal, it is directed to the same place 32as the standard output. 33.Pp 34.Nm Nohup 35exits 1 if an error occurs, otherwise the exit status is that of 36.Ar command . 37.Sh ENVIRONMENT 38The following variable is utilized by 39.Nm nohup . 40.Tw Fl 41.Tp Ev HOME 42If the output file 43.Pa nohup.out 44cannot be created in the current directory, the 45.Nm nohup 46utility uses the directory named by 47.Ev HOME 48to create the file. 49.Tp 50.Sh SEE ALSO 51.Xr signal 3 52.Sh STANDARDS 53The nohup function is expected to be POSIX 1003.2 compatible. 54