linux权限管理之文件属性

Posted 2021-11-08 anttech

 

文件属性 chattr

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文件权限管理之： 文件属性
注：设置文件属性(权限)，针对所有用户，包括root
[[email protected] ~]# touch file100 file200 file300
[[email protected] ~]# lsattr file100 file200 file300
-------------e- file100
-------------e- file200
-------------e- file300

[[email protected] ~]# man chattr
[[email protected] ~]# chattr +a file100
[[email protected] ~]# chattr +i file200
[[email protected] ~]# chattr +A file300

[[email protected] ~]# lsattr file100 file200 file300
-----a-------e- file100
----i--------e- file200
-------A-----e- file300

[[email protected] ~]# echo 111 > file100 //以覆盖的方式写入
bash: file100: Operation not permitted
[[email protected] ~]# rm -rf file100
rm: cannot remove `file100‘: Operation not permitted
[[email protected] ~]# echo 111 >> file100 //以追加的方式写入，例如日志文件

[[email protected] ~]# echo 111 > file200
bash: file200: Permission denied
[[email protected] ~]# echo 111 >> file200
bash: file200: Permission denied
[[email protected] ~]# rm -rf file200
rm: cannot remove `file200‘: Operation not permitted

[[email protected] ~]# chattr -a file100
[[email protected] ~]# chattr -i file200
[[email protected] ~]# chattr -A file300