一,权限修改命令:
chmod [OPTION]... MODE[,MODE]... FILE...
二,文件 / 目录 MODE 指定方式:
1),八进制 (r=4,w=2,x=1)
[root@pinfun6 tmp]#ll filename - rwxrwxrwx 1 root root 0 Apr 15 14 : 37 filename[root@pinfun6~]#chmod 0755 filename[root@pinfun6 tmp]#ls - l filename - rwxr - xr - x 1 root root 0 Apr 15 14 : 37 filename
2),类别范围 (u = 所有者, g = 组, o = 其他, a=ugo)
[root@pinfun6 tmp]#ll filename - rwxrwxrwx 1 root root 0 Apr 15 14 : 37 filename[root@pinfun6 tmp]#chmod u = r - x[, o = r - x] filename[root@pinfun6 tmp]#ll filename - r--rwxrwx 1 root root 0 Apr 15 14 : 37 filename
3),只操作某类用户的某类权限 (-/+)
[root@pinfun6 tmp]#ll filename - rwxrwxrwx 1 root root 0 Apr 15 14 : 37 filename[root@pinfun6 tmp]#chmod g - w,
o - w filename[root@pinfun6 tmp]#ll filename - rwxr - xr - x 1 root root 0 Apr 15 14 : 37 filename
[root@pinfun6 tmp]#chmod g + w filename[root@pinfun6 tmp]#ll filename - rwxrwxr - x 1 root root 0 Apr 15 14 : 37 filename
三,修改文件目录的属主,属组
chown [OPTION]... [OWNER][:[GROUP]] FILE...
chgrp [OPTION]... GROUP FILE...
[root@pinfun6 tmp]#chown root filename#修改属主 [root@pinfun6 tmp]#chown: root filename#修改属组 [root@pinfun6 tmp]#chgrp root filename#修改属组 [root@pinfun6 tmp]#chown root: root filename#修改属主和属组
来源: http://lib.csdn.net/article/linux/35923