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linux shell pid

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ruby script/server
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nohup ruby script/server &
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nohup ruby script/server & 2 > 1 &
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nohup ruby script/server & 2 > 1 & echo $! > tmp/pid &
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nohup ruby script/server & echo $! > tmp/pid & 2 > 1 &
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kill $(cat tmp/pid)
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nohup ruby script/server >/dev/null & echo $! > tmp/pid & 2 > 1 &


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linux fping

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sudo apt-get install fping
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linux ѧϰ1 2009

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linux java/jsp »ñȡϵͳµ±Ç°Ê±¼äÎÊÌâ

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   //»ñȡϵͳʱ¼ä
   //String ddate=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(Calendar.getInstance().getTime());
   TimeZone tz = TimeZone.getTimeZone("ETC/GMT-8"); 
    TimeZone.setDefault(tz);
    ......
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