problems with os.execute() return code

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• Subject: problems with os.execute() return code
• From: "ms2008vip" <ms2008vip@...>
• Date: 2013年6月30日 23:18:21 +0800

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 Hello all,
 have a problem: 
 local stat = assert(os.execute("/usr/bin/pgrep -f 'tail -F /opt/aaa' >& /dev/null"))
 print(stat) --> 0
But when I type this in bash, it returns 1, what happened? 
 
 				
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ms2008vip
2013年06月30日

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