2 # nohup -- run a command immume to hangups, with output to a non-tty
3 # Copyright (C) 1991 Free Software Foundation, Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2, or (at your option)
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 # Written by David MacKenzie <djm@gnu.ai.mit.edu>.
21 # Make sure we get GNU nice, if possible; also allow
22 # it to be somewhere else in PATH if not installed yet.
25 usage="Usage: $0 COMMAND [ARG]...
29 Try \`$0 --help' for more information."
32 --help display this help and exit
33 --version output version information and exit"
45 echo "$usage"; echo "$usage_help"; exit 0 ;;
47 echo "nohup - @VERSION@"; exit 0 ;;
55 oldmask=`umask`; umask 077
56 # Only redirect the output if the user didn't already do it.
58 # If we cannot write to the current directory, use the home directory.
59 if cat /dev/null >> nohup.out; then
60 echo "nohup: appending output to \`nohup.out'" 2>&1
62 exec nice -5 -- "$@" >> nohup.out 2>&1
64 cat /dev/null >> $HOME/nohup.out
65 echo "nohup: appending output to \`$HOME/nohup.out'" 2>&1
67 exec nice -5 -- "$@" >> $HOME/nohup.out 2>&1