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Annotation of src/usr.bin/nohup/nohup.1, Revision 1.6

1.6     ! aaron       1: .\"    $OpenBSD: nohup.1,v 1.5 1999/06/05 01:21:35 aaron Exp $
1.1       deraadt     2: .\"    $NetBSD: nohup.1,v 1.5 1995/08/31 23:35:24 jtc Exp $
                      3: .\"
                      4: .\" Copyright (c) 1989, 1990, 1993
                      5: .\"    The Regents of the University of California.  All rights reserved.
                      6: .\"
                      7: .\" This code is derived from software contributed to Berkeley by
                      8: .\" the Institute of Electrical and Electronics Engineers, Inc.
                      9: .\"
                     10: .\" Redistribution and use in source and binary forms, with or without
                     11: .\" modification, are permitted provided that the following conditions
                     12: .\" are met:
                     13: .\" 1. Redistributions of source code must retain the above copyright
                     14: .\"    notice, this list of conditions and the following disclaimer.
                     15: .\" 2. Redistributions in binary form must reproduce the above copyright
                     16: .\"    notice, this list of conditions and the following disclaimer in the
                     17: .\"    documentation and/or other materials provided with the distribution.
                     18: .\" 3. All advertising materials mentioning features or use of this software
                     19: .\"    must display the following acknowledgement:
                     20: .\"    This product includes software developed by the University of
                     21: .\"    California, Berkeley and its contributors.
                     22: .\" 4. Neither the name of the University nor the names of its contributors
                     23: .\"    may be used to endorse or promote products derived from this software
                     24: .\"    without specific prior written permission.
                     25: .\"
                     26: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     27: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     28: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     29: .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     30: .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     31: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     32: .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     33: .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     34: .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     35: .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     36: .\" SUCH DAMAGE.
                     37: .\"
                     38: .\"    @(#)nohup.1     8.1 (Berkeley) 6/6/93
                     39: .\"
                     40: .Dd June 6, 1993
                     41: .Dt NOHUP 1
                     42: .Os
                     43: .Sh NAME
                     44: .Nm nohup
                     45: .Nd invoke a command immune to hangups
                     46: .Sh SYNOPSIS
                     47: .Nm nohup
                     48: .Ar utility
                     49: .Op Ar arg ...
                     50: .Sh DESCRIPTION
                     51: The
                     52: .Nm nohup
                     53: utility invokes
                     54: .Ar command
                     55: with
                     56: its arguments
                     57: and at this time sets the signal
                     58: .Dv SIGHUP
1.5       aaron      59: to be ignored.
1.1       deraadt    60: If the standard output is a terminal, the standard output is
                     61: appended to the file
                     62: .Pa nohup.out
                     63: in the current directory.
                     64: If standard error is a terminal, it is directed to the same place
                     65: as the standard output.
1.6     ! aaron      66: .Pp
1.1       deraadt    67: The
                     68: .Nm nohup
                     69: utility shall exit with one of the following values:
1.6     ! aaron      70: .Pp
        !            71: .Bl -tag -width Ds -offset indent -compact
1.1       deraadt    72: .It 126
                     73: The
                     74: .Ar utility
                     75: was found but could not be invoked.
                     76: .It 127
                     77: The
                     78: .Ar utility
1.5       aaron      79: could not be found or an error occurred in
1.4       aaron      80: .Nm nohup .
1.1       deraadt    81: .El
                     82: .Pp
1.5       aaron      83: Otherwise, the exit status of
1.1       deraadt    84: .Nm nohup
1.5       aaron      85: shall be that of
1.1       deraadt    86: .Ar utility .
1.6     ! aaron      87: .Sh ENVIRONMENT
        !            88: The following environment variables affect the execution of
        !            89: .Nm nohup :
        !            90: .Bl -tag -width flag
        !            91: .It Ev HOME
        !            92: If the output file
        !            93: .Pa nohup.out
        !            94: cannot be created in the current directory, the
        !            95: .Nm nohup
        !            96: utility uses the directory named by
        !            97: .Ev HOME
        !            98: to create the file.
        !            99: .El
1.1       deraadt   100: .Sh SEE ALSO
                    101: .Xr signal 3
                    102: .Sh STANDARDS
                    103: The
                    104: .Nm nohup
                    105: command is expected to be
                    106: .St -p1003.2
                    107: compatible.