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set uid: chmod u+s DirName
set gid: chmod g+s DirName
sticky: chmod o+t DirName
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µÚÎå½² ¹ýÂËÆ÷,ÊäÈë,Êä³ö,ÖØ¶¨Ïò (video 11,12)
ÊäÈëÊä³öµÄλÖÃ: /dev/std*
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Êä³öÖØ¶¨Ïò :
¸²¸ÇÓë×·¼Ó: ls –l > f.txt ls –l >>f.txt
Ë«ÖØÊä³öÖØ¶¨Ïò: find /etc –name passwd 2>err.txt > out.txt
È«²¿Êä³öµ½Í¬Ò»Î»ÖÃ: find /etc –name passwd &> out.txt
µÚÁù½² Îļþ²éÕÒÓëÎļþ¹ÜÀí (video 13,)
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