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$ ls -l file.txt
-rw-r--r-- 1 user group 1024 Sep 30 10:00 file.txt

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¶þ¡¢Ê¹ÓÃAccess Control List£¨ACL£©À©Õ¹È¨ÏÞ¿ØÖÆ

ÔÚLinuxÖУ¬Access Control List£¨ACL£©ÊÇÒ»ÖÖÀ©Õ¹È¨ÏÞ¿ØÖÆ»úÖÆ£¬¿ÉÒÔΪÏêϸµÄÓû§»òÓû§×é·ÖÅÉÖ¸¶¨µÄȨÏÞ¡£ACL¿ÉÒÔʵÏÖÔ½·¢ÎÞаºÍϸÁ£¶ÈµÄȨÏÞ¿ØÖÆ¡£

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$ sudo apt-get install acl

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$ sudo yum install acl

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$ sudo mount -o remount,acl /dev/sdaX /mnt

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$ sudo setfacl -m u:john:rw file.txt

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$ getfacl file.txt
# file: file.txt
# owner: user
# group: group
user::rw-
user:john:rw-
group::r--
mask::rw-
other::r--

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¼ÌÐøÔĶÁÇë»á¼û [https://linux.cn/article-12863-1.html](https://linux.cn/article-12863-1.html)

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