spawn

来自「QccPack implementation in C」· 代码 · 共 79 行

#!/bin/sh

usage()
{
	echo "usage: `basename $0` [-n level] [-t] [-l log_file] script_file"
	exit 1
}

if [ $# -lt 1 ]; then
	usage
fi

if [ \"$1\" = \"-h\" -o \"$1\" = \"-help\" -o \"$1\" = \"--help\" ]; then
	usage
fi

LOGFILE="log"
NICE=0
TIMER=0

DATE=`date`

while [ $# -gt 1 ]; do
	if [ \"$1\" = \"-n\" ]; then
		NICE=$2
		shift 2
	elif [ \"$1\" = \"-t\" ]; then
		TIMER=1
		shift
	elif [ \"$1\" = \"-l\" ]; then
		LOGFILE=$2
		shift 2
	else
		usage
	fi
done

SCRIPTFILE=$1

if [ ! -r $SCRIPTFILE ]; then
	echo `basename $0`: $SCRIPTFILE does not exist or is not readable
	exit 1
fi

echo ------------------------------------------------------------------------ >$LOGFILE
echo >>$LOGFILE
echo >>$LOGFILE
echo Process started on $HOST --- $DATE >> $LOGFILE
echo "     Script file: " $SCRIPTFILE >>$LOGFILE
if [ $NICE -gt 0 ]; then
	echo "      Nice level: " $NICE >>$LOGFILE
else
	echo "      Nice level: (none)" >>$LOGFILE
fi
echo >>$LOGFILE
echo >>$LOGFILE
echo ------------------------------------------------------------------------ >>$LOGFILE
echo >>$LOGFILE
echo >>$LOGFILE

# Detach from xterm
unset DISPLAY

if [ $NICE -gt 0 ]; then
  if [ $TIMER -eq 1 ]; then
    (nice -$NICE /usr/bin/time $SCRIPTFILE >> $LOGFILE 2>&1 ; \
     spawn_end $LOGFILE )&
  else
    (nice -$NICE $SCRIPTFILE >> $LOGFILE 2>&1 ; spawn_end $LOGFILE )&
  fi
else
  if [ $TIMER -eq 1 ]; then
    (/usr/bin/time $SCRIPTFILE >> $LOGFILE 2>&1 ; spawn_end $LOGFILE )&
  else
    ($SCRIPTFILE >> $LOGFILE 2>&1 ; spawn_end $LOGFILE )&
  fi
fi