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#!/bin/sh
# nohup -- run a command immume to hangups, with output to a non-tty
# Copyright (C) 1991, 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
# Written by David MacKenzie <djm@gnu.ai.mit.edu>.
usage="Usage: $0 COMMAND [ARG]...
or: $0 OPTION"
usage_try="
Try \`$0 --help' for more information."
usage_help="Run COMMAND, ignoring hangup signals.
--help display this help and exit
--version output version information and exit
Report bugs to <@PACKAGE_BUGREPORT@>."
if [ $# -eq 0 ]; then
echo >&2 "$usage"
echo >&2 "$usage_try"
exit 127
fi
fail=0
case $# in
1 )
case "z${1}" in
z--help )
echo "$usage" || fail=127; echo "$usage_help" || fail=127
exit $fail;;
z--version )
echo "nohup (@GNU_PACKAGE@) @VERSION@" || fail=127
exit $fail;;
* ) ;;
esac
;;
* ) ;;
esac
trap "" 1
# Redirect stdout if the user didn't already do it.
if [ -t 1 ]; then
oldmask=`umask`; umask 077
# If we cannot write to the current directory, use the home directory.
if exec >> nohup.out; then
echo "nohup: appending output to \`nohup.out'" >&2
elif exec >> "$HOME/nohup.out"; then
echo "nohup: appending output to \`$HOME/nohup.out'" >&2
else
echo "nohup: cannot append to either \`nohup.out' or \`$HOME/nohup.out'" \
>&2
exit 127
fi
umask $oldmask
fi
# Redirect stderr if the user didn't already do it.
if [ -t 2 ]; then
exec 2>&1
fi
exec "$@"
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