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more /etc/passwd ÖÐÒ²ÓмǼͬÑùÄܲ鵽
more /etc/shells ±¾ÏµÍ³Ö§³ÖµÄshell
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chsh -l¿ÉÒÔ²éѯµ±Ç°Ö§³ÖµÄchsh
chsh /bin/ash ÐÞ¸Äshell ×¢ÏúºóÉúЧ
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cp   ¸´ÖÆÎļþ»òĿ¼     cp -r Ŀ¼Ãû ¸´ÖÆÄ¿Â¼
mv   ÒÆ¶¯Îļþ»òĿ¼¡¢Îļþ»òĿ¼¸ÄÃû
rm   ɾ³ýÎļþ»òĿ¼     rm -f ²»Ìáʾֱ½Óɾ³ý rm -rf ɾ³ýĿ¼²¢²»Ìáʾ
ln   ½¨Á¢Á´½ÓÎļþ       £¨ÀàËÆÓÚ¿ì½Ý·½Ê½£©  ln -s /etc/passwd pass
wc   ͳ¼ÆÖ¸¶¨Îı¾ÎļþµÄÐÐÊý¡¢×ÖÊý¡¢×Ö·ûÊý    wc /etc/passwd
ls   ÏÔʾÎļþ»òÕßĿ¼ÁÐ±í   ls -l   ls -a
cd   Çл»Ä¿Â¼  cd  /etc/   cd  »Ø³µÖ±½Óµ½×Ô¼ÒÖ÷Ŀ¼Àï  cd -»Øµ½Éϼ¶Ä¿Â¼
pwd  ÏÔʾµ±Ç°¹¤×÷Ŀ¼
mkdir ´´½¨Ò»¸öĿ¼   mkdir -p test/a/b ÔÚtestϽ¨Á¢aĿ¼Ï½¨Á¢bĿ¼
rmdir ɾ³ýij¸öĿ¼   rmdir -rf test/
cat   tac   ÏÔʾÎļþÄÚÈÝ£¨Ö±½ÓÏÔʾµ½Ä©Î²£©
more   less ÏÔʾÎļþÄÚÈÝ£¨¿ÉÒÔÏòǰÏòºó·­£©
head   tail ÏÔʾÎļþµÄÈô¸ÉÐР head -5 /etc/passwd ÏÔʾÎļþµÄÍ·5ÐÐ
whereis ÏÔʾϵͳÎļþËùÔÚ·¾¶  whereis ping
find    ÔÚϵͳÖÐÕÒµ½Ö¸¶¨Îļþ                     find zzf
locate  ÔÚϵͳÖÐÕÒµ½Ö¸¶¨Îļþ                      locate (ÏÈÖ´ÐÐupdatedb´´½¨Ë÷ÒýĿ¼)
grep    ÏÔʾָ¶¨Îı¾Îļþº¬ÓÐÖ¸¶¨µ¥´ÊµÄijÐР  


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init 0»òÕß halt poweroff
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shutdown -r +5 (Îå·ÖÖÓÖ®ºó¹Ø»ú)
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linux command


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     mkdir
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