2009年2月10日 星期二

[linux] 檔案的所屬權管理

chown 變更檔案的擁有者

chown zen test.txt #把test.txt的擁有者改為zen
chown fool:root hi.txt #把hi.txt的擁有者改為fool, 擁有群組改為root

可配合-R 遞迴修改資料夾內的內層檔案
chown -R zen file1 #file1為資料夾, 使file1裏的檔案都改為zen所擁有


chgrp 變更檔案的擁有群組

chgrp group1 test.txt #把test.txt設為group1這個群組所屬


chmod 修改檔案的存取權
r:4 w:2 x:1
讀 寫 存取目錄

chmod 755 secert.txt
#第一位為owner權限, 二為group權限, 三為others權限
#使secert.txt這個檔案,
#7= 4+2+1: owner rwx
#5 = 4+1: group r-x
#5 = 4+1: others r-x
另外, 是否可存取亦要視乎檔案屬性, 像是資料夾就沒有x就不能進入資料夾內

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